31327472313 has 48 divisors (see below), whose sum is σ = 50296896000. Its totient is φ = 18699793920.

The previous prime is 31327472311. The next prime is 31327472321.

31327472313 is a `hidden beast` number, since 3 + 1 + 3 + 274 + 72 + 313 = 666.

31327472313 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31327472313 - 2¹ = 31327472311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31327472311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223863 + ... + 335811.

It is an arithmetic number, because the mean of its divisors is an integer number (1047852000).

Almost surely, 2^31327472313 is an apocalyptic number.

It is an amenable number.

31327472313 is a deficient number, since it is larger than the sum of its proper divisors (18969423687).

31327472313 is a wasteful number, since it uses less digits than its factorization.

31327472313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112062 (or 112059 counting only the distinct ones).

The product of its digits is 63504, while the sum is 36.

The spelling of 31327472313 in words is "thirty-one billion, three hundred twenty-seven million, four hundred seventy-two thousand, three hundred thirteen".