31113493972 has 12 divisors (see below), whose sum is σ = 59398488576. Its totient is φ = 14142497240.

The previous prime is 31113493967. The next prime is 31113494029. The reversal of 31113493972 is 27939431113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353562388 + ... + 353562475.

It is an arithmetic number, because the mean of its divisors is an integer number (4949874048).

Almost surely, 2^31113493972 is an apocalyptic number.

It is an amenable number.

31113493972 is a deficient number, since it is larger than the sum of its proper divisors (28284994604).

31113493972 is a wasteful number, since it uses less digits than its factorization.

31113493972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707124878 (or 707124876 counting only the distinct ones).

The product of its digits is 122472, while the sum is 43.

The spelling of 31113493972 in words is "thirty-one billion, one hundred thirteen million, four hundred ninety-three thousand, nine hundred seventy-two".