12931162931 has 4 divisors (see below), whose sum is σ = 13691819592. Its totient is φ = 12170506272.

The previous prime is 12931162921. The next prime is 12931162943. The reversal of 12931162931 is 13926113921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12931162931 - 2²⁶ = 12864054067 is a prime.

It is a super-2 number, since 2×12931162931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12931162921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380328305 + ... + 380328338.

It is an arithmetic number, because the mean of its divisors is an integer number (3422954898).

Almost surely, 2^12931162931 is an apocalyptic number.

12931162931 is a deficient number, since it is larger than the sum of its proper divisors (760656661).

12931162931 is an equidigital number, since it uses as much as digits as its factorization.

12931162931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760656660.

The product of its digits is 17496, while the sum is 38.

The spelling of 12931162931 in words is "twelve billion, nine hundred thirty-one million, one hundred sixty-two thousand, nine hundred thirty-one".