31013132480 has 84 divisors (see below), whose sum is σ = 81174092160. Its totient is φ = 11277488640.

The previous prime is 31013132473. The next prime is 31013132497. The reversal of 31013132480 is 8423131013.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361760 + ... + 439199.

It is an arithmetic number, because the mean of its divisors is an integer number (966358240).

Almost surely, 2^31013132480 is an apocalyptic number.

It is an amenable number.

31013132480 is an abundant number, since it is smaller than the sum of its proper divisors (50160959680).

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

31013132480 is a wasteful number, since it uses less digits than its factorization.

31013132480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800998 (or 800977 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 31013132480 its reverse (8423131013), we get a palindrome (39436263493).

The spelling of 31013132480 in words is "thirty-one billion, thirteen million, one hundred thirty-two thousand, four hundred eighty".