31040013044 has 12 divisors (see below), whose sum is σ = 55240701600. Its totient is φ = 15256955448.

The previous prime is 31040013013. The next prime is 31040013089. The reversal of 31040013044 is 44031004013.

It is a happy number.

It is a congruent number.

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, 65762504 + ... + 65762975.

It is an arithmetic number, because the mean of its divisors is an integer number (4603391800).

Almost surely, 2^31040013044 is an apocalyptic number.

It is an amenable number.

31040013044 is a deficient number, since it is larger than the sum of its proper divisors (24200688556).

31040013044 is a wasteful number, since it uses less digits than its factorization.

31040013044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131525542 (or 131525540 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31040013044 its reverse (44031004013), we get a palindrome (75071017057).

The spelling of 31040013044 in words is "thirty-one billion, forty million, thirteen thousand, forty-four".