31345071532 has 24 divisors (see below), whose sum is σ = 56128808736. Its totient is φ = 15310808448.

The previous prime is 31345071523. The next prime is 31345071559. The reversal of 31345071532 is 23517054313.

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, 267888 + ... + 366679.

It is an arithmetic number, because the mean of its divisors is an integer number (2338700364).

Almost surely, 2^31345071532 is an apocalyptic number.

It is an amenable number.

31345071532 is a deficient number, since it is larger than the sum of its proper divisors (24783737204).

31345071532 is a wasteful number, since it uses less digits than its factorization.

31345071532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634857 (or 634855 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

The spelling of 31345071532 in words is "thirty-one billion, three hundred forty-five million, seventy-one thousand, five hundred thirty-two".