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131303111011212 = 22371657943350799
BaseRepresentation
bin11101110110101101100011…
…010010100010101110001100
3122012220110021120021111002110
4131312231203102202232030
5114202232232404324322
61143131452205224020
736441223331431530
oct3566554322425614
9565813246244073
10131303111011212
1138923378112168
121288750a262010
135835aa406155a
14245d1669a9bc0
15102a76668ec0c
hex776b634a2b8c

131303111011212 has 48 divisors (see below), whose sum is σ = 350352940313600. Its totient is φ = 37492534115712.

The previous prime is 131303111011187. The next prime is 131303111011249. The reversal of 131303111011212 is 212110111303131.

It is a super-2 number, since 2×1313031110112122 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471536212 + ... + 471814587.

Almost surely, 2131303111011212 is an apocalyptic number.

131303111011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131303111011212 is an abundant number, since it is smaller than the sum of its proper divisors (219049829302388).

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

131303111011212 is a wasteful number, since it uses less digits than its factorization.

131303111011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943352470 (or 943352468 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 131303111011212 its reverse (212110111303131), we get a palindrome (343413222314343).

The spelling of 131303111011212 in words is "one hundred thirty-one trillion, three hundred three billion, one hundred eleven million, eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1657 3314 4971 6628 9942 11599 19884 23198 34797 46396 69594 139188 943350799 1886701598 2830052397 3773403196 5660104794 6603455593 11320209588 13206911186 19810366779 26413822372 39620733558 79241467116 1563132273943 3126264547886 4689396821829 6252529095772 9378793643658 10941925917601 18757587287316 21883851835202 32825777752803 43767703670404 65651555505606 131303111011212