12931162905 has 16 divisors (see below), whose sum is σ = 20981268864. Its totient is φ = 6799484160.

The previous prime is 12931162903. The next prime is 12931162921. The reversal of 12931162905 is 50926113921.

It is not a de Polignac number, because 12931162905 - 2¹ = 12931162903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12931162903) 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, 6069904 + ... + 6072033.

It is an arithmetic number, because the mean of its divisors is an integer number (1311329304).

Almost surely, 2^12931162905 is an apocalyptic number.

12931162905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12931162905 is a deficient number, since it is larger than the sum of its proper divisors (8050105959).

12931162905 is a wasteful number, since it uses less digits than its factorization.

12931162905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12142016.

The product of its (nonzero) digits is 29160, while the sum is 39.

The spelling of 12931162905 in words is "twelve billion, nine hundred thirty-one million, one hundred sixty-two thousand, nine hundred five".