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12313013111031 = 343112384995293
BaseRepresentation
bin1011001100101101100011…
…0001011100100011110111
31121121010001001110122221210
42303023120301130203313
53103214022324023111
642104304203212503
72410404641400153
oct263133061344367
947533031418853
1012313013111031
113a17a129a1016
12146a417217133
136b415c530a99
14307d4b100063
15165452c710a6
hexb32d8c5c8f7

12313013111031 has 16 divisors (see below), whose sum is σ = 16814109040256. Its totient is φ = 8010636280416.

The previous prime is 12313013111023. The next prime is 12313013111057. The reversal of 12313013111031 is 13011131031321.

It is not a de Polignac number, because 12313013111031 - 23 = 12313013111023 is a prime.

It is a super-2 number, since 2×123130131110312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12313013110989 and 12313013111007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313013111731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42352780 + ... + 42642513.

It is an arithmetic number, because the mean of its divisors is an integer number (1050881815016).

Almost surely, 212313013111031 is an apocalyptic number.

12313013111031 is a deficient number, since it is larger than the sum of its proper divisors (4501095929225).

12313013111031 is a wasteful number, since it uses less digits than its factorization.

12313013111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84996462.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 12313013111031 its reverse (13011131031321), we get a palindrome (25324144142352).

The spelling of 12313013111031 in words is "twelve trillion, three hundred thirteen billion, thirteen million, one hundred eleven thousand, thirty-one".

Divisors: 1 3 43 129 1123 3369 48289 144867 84995293 254985879 3654797599 10964392797 95449714039 286349142117 4104337703677 12313013111031