117213256320 has 128 divisors (see below), whose sum is σ = 377815752000. Its totient is φ = 30905622528.

The previous prime is 117213256261. The next prime is 117213256331. The reversal of 117213256320 is 23652312711.

It is a tau number, because it is divible by the number of its divisors (128).

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, 172090 + ... + 513849.

Almost surely, 2^117213256320 is an apocalyptic number.

117213256320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117213256320 is an abundant number, since it is smaller than the sum of its proper divisors (260602495680).

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

117213256320 is an equidigital number, since it uses as much as digits as its factorization.

117213256320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686050 (or 686038 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 117213256320 in words is "one hundred seventeen billion, two hundred thirteen million, two hundred fifty-six thousand, three hundred twenty".