31339265028 has 12 divisors (see below), whose sum is σ = 73124951760. Its totient is φ = 10446421672.

The previous prime is 31339265017. The next prime is 31339265039. The reversal of 31339265028 is 82056293313.

It is an interprime number because it is at equal distance from previous prime (31339265017) and next prime (31339265039).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 1305802698 + ... + 1305802721.

It is an arithmetic number, because the mean of its divisors is an integer number (6093745980).

Almost surely, 2^31339265028 is an apocalyptic number.

It is an amenable number.

31339265028 is an abundant number, since it is smaller than the sum of its proper divisors (41785686732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31339265028 is a wasteful number, since it uses less digits than its factorization.

31339265028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611605426 (or 2611605424 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 31339265028 in words is "thirty-one billion, three hundred thirty-nine million, two hundred sixty-five thousand, twenty-eight".