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131142131211320 = 23567732209330341
BaseRepresentation
bin11101110100010111101000…
…001001010101110000111000
3122012100001202121101100022122
4131310113220021111300320
5114142113041042230240
61142525510253340412
736423464156626055
oct3564275011256070
9565301677340278
10131142131211320
113887107a222929
1212860282497708
13582385ab0aca8
142455454cc602c
151026493bb14b5
hex7745e8255c38

131142131211320 has 128 divisors (see below), whose sum is σ = 303599949906240. Its totient is φ = 50962065960960.

The previous prime is 131142131211281. The next prime is 131142131211337. The reversal of 131142131211320 is 23112131241131.

131142131211320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1311421312113202 (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131142131211320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4322259350 + ... + 4322289690.

Almost surely, 2131142131211320 is an apocalyptic number.

131142131211320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131142131211320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151799974953120).

131142131211320 is an abundant number, since it is smaller than the sum of its proper divisors (172457818694920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131142131211320 is a wasteful number, since it uses less digits than its factorization.

131142131211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52585 (or 52581 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 131142131211320 its reverse (23112131241131), we get a palindrome (154254262452451).

The spelling of 131142131211320 in words is "one hundred thirty-one trillion, one hundred forty-two billion, one hundred thirty-one million, two hundred eleven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 67 73 134 146 268 292 335 365 536 584 670 730 1340 1460 2680 2920 4891 9782 19564 22093 24455 30341 39128 44186 48910 60682 88372 97820 110465 121364 151705 176744 195640 220930 242728 303410 441860 606820 883720 1213640 1480231 1612789 2032847 2214893 2960462 3225578 4065694 4429786 5920924 6451156 7401155 8063945 8131388 8859572 10164235 11074465 11841848 12902312 14802310 16127890 16262776 17719144 20328470 22148930 29604620 32255780 40656940 44297860 59209240 64511560 81313880 88595720 108056863 148397831 216113726 296795662 432227452 540284315 593591324 670323713 741989155 864454904 1080568630 1187182648 1340647426 1483978310 2161137260 2681294852 2967956620 3351618565 4322274520 5362589704 5935913240 6703237130 13406474260 26812948520 44911688771 48933631049 89823377542 97867262098 179646755084 195734524196 224558443855 244668155245 359293510168 391469048392 449116887710 489336310490 898233775420 978672620980 1796467550840 1957345241960 3278553280283 6557106560566 13114213121132 16392766401415 26228426242264 32785532802830 65571065605660 131142131211320