31139394124 has 12 divisors (see below), whose sum is σ = 54502109200. Its totient is φ = 15567362928.

The previous prime is 31139394113. The next prime is 31139394163. The reversal of 31139394124 is 42149393113.

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, 553344 + ... + 607015.

Almost surely, 2^31139394124 is an apocalyptic number.

It is an amenable number.

31139394124 is a deficient number, since it is larger than the sum of its proper divisors (23362715076).

31139394124 is a wasteful number, since it uses less digits than its factorization.

31139394124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167072 (or 1167070 counting only the distinct ones).

The product of its digits is 69984, while the sum is 40.

The spelling of 31139394124 in words is "thirty-one billion, one hundred thirty-nine million, three hundred ninety-four thousand, one hundred twenty-four".