31240544232 has 32 divisors (see below), whose sum is σ = 78200647200. Its totient is φ = 10400276544.

The previous prime is 31240544201. The next prime is 31240544311. The reversal of 31240544232 is 23244504213.

It is a self number, because there is not a number n which added to its sum of digits gives 31240544232.

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 7 ways as a sum of consecutive naturals, for example, 808107 + ... + 845882.

It is an arithmetic number, because the mean of its divisors is an integer number (2443770225).

Almost surely, 2^31240544232 is an apocalyptic number.

It is an amenable number.

31240544232 is an abundant number, since it is smaller than the sum of its proper divisors (46960102968).

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

31240544232 is a wasteful number, since it uses less digits than its factorization.

31240544232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654785 (or 1654781 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The spelling of 31240544232 in words is "thirty-one billion, two hundred forty million, five hundred forty-four thousand, two hundred thirty-two".