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1331313123030 = 23511291033313463
BaseRepresentation
bin10011010111111000011…
…100100001111011010110
311201021100111111220202120
4103113320130201323112
5133303012124414110
62455332524320410
7165120115555302
oct23277034417326
94637314456676
101331313123030
11473674606a70
121960260a3106
13987085406c7
144861616cd02
152496ce82870
hex135f8721ed6

1331313123030 has 128 divisors (see below), whose sum is σ = 3606430417920. Its totient is φ = 311560220160.

The previous prime is 1331313123017. The next prime is 1331313123061. The reversal of 1331313123030 is 303213131331.

It is a Curzon number.

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 63 ways as a sum of consecutive naturals, for example, 98880079 + ... + 98893541.

It is an arithmetic number, because the mean of its divisors is an integer number (28175237640).

Almost surely, 21331313123030 is an apocalyptic number.

1331313123030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331313123030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1803215208960).

1331313123030 is an abundant number, since it is smaller than the sum of its proper divisors (2275117294890).

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

1331313123030 is a wasteful number, since it uses less digits than its factorization.

1331313123030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23846.

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 1331313123030 its reverse (303213131331), we get a palindrome (1634526254361).

The spelling of 1331313123030 in words is "one trillion, three hundred thirty-one billion, three hundred thirteen million, one hundred twenty-three thousand, thirty".

Divisors: 1 2 3 5 6 10 11 15 22 29 30 33 55 58 66 87 110 145 165 174 290 319 330 435 638 870 957 1595 1914 3190 4785 9570 10333 13463 20666 26926 30999 40389 51665 61998 67315 80778 103330 113663 134630 148093 154995 201945 227326 296186 299657 309990 340989 390427 403890 444279 568315 599314 681978 740465 780854 888558 898971 1136630 1171281 1480930 1498285 1704945 1797942 1952135 2221395 2342562 2996570 3296227 3409890 3904270 4294697 4442790 4494855 5856405 6592454 8589394 8989710 9888681 11712810 12884091 16481135 19777362 21473485 25768182 32962270 42946970 49443405 64420455 98886810 128840910 139113179 278226358 417339537 695565895 834679074 1391131790 1530244969 2086697685 3060489938 4034282191 4173395370 4590734907 7651224845 8068564382 9181469814 12102846573 15302449690 20171410955 22953674535 24205693146 40342821910 44377104101 45907349070 60514232865 88754208202 121028465730 133131312303 221885520505 266262624606 443771041010 665656561515 1331313123030