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131323012323020 = 2257353361194269
BaseRepresentation
bin11101110111000000000101…
…100000000001011011001100
3122012222100122112002212120222
4131313000011200001123030
5114203044012123314040
61143144543051330512
736442526444666000
oct3567000540013314
9565870575085528
10131323012323020
113893085a9662a1
121288b343150a38
1358379261647bb
1424600d3b22700
15102b02d914bb5
hex7770058016cc

131323012323020 has 96 divisors (see below), whose sum is σ = 327675441744000. Its totient is φ = 44175503753472.

The previous prime is 131323012322987. The next prime is 131323012323089. The reversal of 131323012323020 is 20323210323131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180233555 + ... + 180960714.

It is an arithmetic number, because the mean of its divisors is an integer number (3413285851500).

Almost surely, 2131323012323020 is an apocalyptic number.

131323012323020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131323012323020 is an abundant number, since it is smaller than the sum of its proper divisors (196352429420980).

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

131323012323020 is a wasteful number, since it uses less digits than its factorization.

131323012323020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361194352 (or 361194336 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 131323012323020 its reverse (20323210323131), we get a palindrome (151646222646151).

The spelling of 131323012323020 in words is "one hundred thirty-one trillion, three hundred twenty-three billion, twelve million, three hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 53 70 98 106 140 196 212 245 265 343 371 490 530 686 742 980 1060 1372 1484 1715 1855 2597 3430 3710 5194 6860 7420 10388 12985 18179 25970 36358 51940 72716 90895 181790 363580 361194269 722388538 1444777076 1805971345 2528359883 3611942690 5056719766 7223885380 10113439532 12641799415 17698519181 19143296257 25283598830 35397038362 38286592514 50567197660 70794076724 76573185028 88492595905 95716481285 123889634267 134003073799 176985191810 191432962570 247779268534 268006147598 353970383620 382865925140 495558537068 536012295196 619448171335 670015368995 938021516593 1238896342670 1340030737990 1876043033186 2477792685340 2680061475980 3752086066372 4690107582965 6566150616151 9380215165930 13132301232302 18760430331860 26264602464604 32830753080755 65661506161510 131323012323020