31372713312 has 96 divisors (see below), whose sum is σ = 84364600320. Its totient is φ = 10202734080.

The previous prime is 31372713283. The next prime is 31372713377. The reversal of 31372713312 is 21331727313.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4087014 + ... + 4094682.

It is an arithmetic number, because the mean of its divisors is an integer number (878797920).

Almost surely, 2^31372713312 is an apocalyptic number.

31372713312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31372713312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42182300160).

31372713312 is an abundant number, since it is smaller than the sum of its proper divisors (52991887008).

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

31372713312 is a wasteful number, since it uses less digits than its factorization.

31372713312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8716 (or 8708 counting only the distinct ones).

The product of its digits is 15876, while the sum is 33.

The spelling of 31372713312 in words is "thirty-one billion, three hundred seventy-two million, seven hundred thirteen thousand, three hundred twelve".