31100418912 has 24 divisors (see below), whose sum is σ = 81638599896. Its totient is φ = 10366806272.

The previous prime is 31100418887. The next prime is 31100418929. The reversal of 31100418912 is 21981400113.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 31100418912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161981253 + ... + 161981444.

It is an arithmetic number, because the mean of its divisors is an integer number (3401608329).

Almost surely, 2^31100418912 is an apocalyptic number.

31100418912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31100418912 is an abundant number, since it is smaller than the sum of its proper divisors (50538180984).

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

31100418912 is a wasteful number, since it uses less digits than its factorization.

31100418912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323962710 (or 323962702 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The spelling of 31100418912 in words is "thirty-one billion, one hundred million, four hundred eighteen thousand, nine hundred twelve".