1312012102131 has 24 divisors (see below), whose sum is σ = 1908513376224. Its totient is φ = 868508334720.

The previous prime is 1312012102117. The next prime is 1312012102151.

1312012102131 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1312012102131 - 2²² = 1312007907827 is a prime.

It is a super-2 number, since 2×1312012102131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312012102111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 942501 + ... + 1874121.

It is an arithmetic number, because the mean of its divisors is an integer number (79521390676).

Almost surely, 2^{1312012102131} is an apocalyptic number.

1312012102131 is a deficient number, since it is larger than the sum of its proper divisors (596501274093).

1312012102131 is a wasteful number, since it uses less digits than its factorization.

1312012102131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932731 (or 932728 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 1312012102131 in words is "one trillion, three hundred twelve billion, twelve million, one hundred two thousand, one hundred thirty-one".