31312424160 has 72 divisors (see below), whose sum is σ = 106853652360. Its totient is φ = 8349979392.

The previous prime is 31312424159. The next prime is 31312424179. The reversal of 31312424160 is 6142421313.

It is a happy number.

31312424160 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 242 + 416 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

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, 10870930 + ... + 10873809.

It is an arithmetic number, because the mean of its divisors is an integer number (1484078505).

Almost surely, 2^31312424160 is an apocalyptic number.

31312424160 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31312424160 is an abundant number, since it is smaller than the sum of its proper divisors (75541228200).

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

31312424160 is a wasteful number, since it uses less digits than its factorization.

31312424160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21744760 (or 21744749 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 31312424160 its reverse (6142421313), we get a palindrome (37454845473).

The spelling of 31312424160 in words is "thirty-one billion, three hundred twelve million, four hundred twenty-four thousand, one hundred sixty".