31230986560 has 56 divisors (see below), whose sum is σ = 74954465280. Its totient is φ = 12394013184.

The previous prime is 31230986557. The next prime is 31230986561. The reversal of 31230986560 is 6568903213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230986561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343600 + ... + 424879.

Almost surely, 2^31230986560 is an apocalyptic number.

It is an amenable number.

31230986560 is an abundant number, since it is smaller than the sum of its proper divisors (43723478720).

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

31230986560 is a wasteful number, since it uses less digits than its factorization.

31230986560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768623 (or 768613 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 31230986560 in words is "thirty-one billion, two hundred thirty million, nine hundred eighty-six thousand, five hundred sixty".