31352245232 has 80 divisors (see below), whose sum is σ = 76157625600. Its totient is φ = 12146833920.

The previous prime is 31352245163. The next prime is 31352245237. The reversal of 31352245232 is 23254225313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31352245237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149444 + ... + 291612.

It is an arithmetic number, because the mean of its divisors is an integer number (951970320).

Almost surely, 2^31352245232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31352245232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38078812800).

31352245232 is an abundant number, since it is smaller than the sum of its proper divisors (44805380368).

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

31352245232 is a wasteful number, since it uses less digits than its factorization.

31352245232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142374 (or 142368 counting only the distinct ones).

The product of its digits is 43200, while the sum is 32.

The spelling of 31352245232 in words is "thirty-one billion, three hundred fifty-two million, two hundred forty-five thousand, two hundred thirty-two".