31201032996 has 72 divisors (see below), whose sum is σ = 94055305344. Its totient is φ = 8526988800.

The previous prime is 31201032937. The next prime is 31201033009. The reversal of 31201032996 is 69923010213.

It is a happy number.

31201032996 is a `hidden beast` number, since 312 + 0 + 10 + 329 + 9 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 31201032996.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2685805 + ... + 2697396.

Almost surely, 2^31201032996 is an apocalyptic number.

31201032996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31201032996 is an abundant number, since it is smaller than the sum of its proper divisors (62854272348).

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

31201032996 is a wasteful number, since it uses less digits than its factorization.

31201032996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5383241 (or 5383236 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The spelling of 31201032996 in words is "thirty-one billion, two hundred one million, thirty-two thousand, nine hundred ninety-six".