31120247196 has 48 divisors (see below), whose sum is σ = 80786714400. Its totient is φ = 10359968256.

The previous prime is 31120247189. The next prime is 31120247219. The reversal of 31120247196 is 69174202113.

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 31120247196.

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, 102901 + ... + 269868.

It is an arithmetic number, because the mean of its divisors is an integer number (1683056550).

Almost surely, 2^31120247196 is an apocalyptic number.

31120247196 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31120247196 is an abundant number, since it is smaller than the sum of its proper divisors (49666467204).

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

31120247196 is a wasteful number, since it uses less digits than its factorization.

31120247196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373555 (or 373547 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 31120247196 in words is "thirty-one billion, one hundred twenty million, two hundred forty-seven thousand, one hundred ninety-six".