31393032292 has 24 divisors (see below), whose sum is σ = 55983570552. Its totient is φ = 15397824000.

The previous prime is 31393032271. The next prime is 31393032329. The reversal of 31393032292 is 29223039313.

It can be written as a sum of positive squares in 4 ways, for example, as 3106501696 + 28286530596 = 55736^2 + 168186^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2525292 + ... + 2537692.

It is an arithmetic number, because the mean of its divisors is an integer number (2332648773).

Almost surely, 2^31393032292 is an apocalyptic number.

It is an amenable number.

31393032292 is a deficient number, since it is larger than the sum of its proper divisors (24590538260).

31393032292 is a wasteful number, since it uses less digits than its factorization.

31393032292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24399 (or 24397 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 37.

The spelling of 31393032292 in words is "thirty-one billion, three hundred ninety-three million, thirty-two thousand, two hundred ninety-two".