31393082372 has 12 divisors (see below), whose sum is σ = 55306605900. Its totient is φ = 15591194976.

The previous prime is 31393082341. The next prime is 31393082389. The reversal of 31393082372 is 27328039313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20128231876 + 11264850496 = 141874^2 + 106136^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26335883 + ... + 26337074.

It is an arithmetic number, because the mean of its divisors is an integer number (4608883825).

Almost surely, 2^31393082372 is an apocalyptic number.

It is an amenable number.

31393082372 is a deficient number, since it is larger than the sum of its proper divisors (23913523528).

31393082372 is a wasteful number, since it uses less digits than its factorization.

31393082372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52673110 (or 52673108 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 31393082372 in words is "thirty-one billion, three hundred ninety-three million, eighty-two thousand, three hundred seventy-two".