31045521232 has 40 divisors (see below), whose sum is σ = 65913281280. Its totient is φ = 14048302080.

The previous prime is 31045521229. The next prime is 31045521253. The reversal of 31045521232 is 23212554013.

It is a self number, because there is not a number n which added to its sum of digits gives 31045521232.

It is a congruent number.

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, 356257 + ... + 434752.

It is an arithmetic number, because the mean of its divisors is an integer number (1647832032).

Almost surely, 2^31045521232 is an apocalyptic number.

It is an amenable number.

31045521232 is an abundant number, since it is smaller than the sum of its proper divisors (34867760048).

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

31045521232 is a wasteful number, since it uses less digits than its factorization.

31045521232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791251 (or 791245 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 31045521232 in words is "thirty-one billion, forty-five million, five hundred twenty-one thousand, two hundred thirty-two".