12929292931 has 4 divisors (see below), whose sum is σ = 13689839592. Its totient is φ = 12168746272.

The previous prime is 12929292917. The next prime is 12929292947. The reversal of 12929292931 is 13929292921.

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 12929292931 - 2²⁷ = 12795075203 is a prime.

It is a super-2 number, since 2×12929292931² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12929292911) 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, 380273305 + ... + 380273338.

It is an arithmetic number, because the mean of its divisors is an integer number (3422459898).

Almost surely, 2^12929292931 is an apocalyptic number.

12929292931 is a deficient number, since it is larger than the sum of its proper divisors (760546661).

12929292931 is an equidigital number, since it uses as much as digits as its factorization.

12929292931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760546660.

The product of its digits is 314928, while the sum is 49.

The spelling of 12929292931 in words is "twelve billion, nine hundred twenty-nine million, two hundred ninety-two thousand, nine hundred thirty-one".