123917099320 has 64 divisors (see below), whose sum is σ = 319682119680. Its totient is φ = 42347442816.

The previous prime is 123917099311. The next prime is 123917099359. The reversal of 123917099320 is 23990719321.

It is a happy number.

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, 634824 + ... + 806743.

It is an arithmetic number, because the mean of its divisors is an integer number (4995033120).

Almost surely, 2^123917099320 is an apocalyptic number.

123917099320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123917099320 is an abundant number, since it is smaller than the sum of its proper divisors (195765020360).

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

123917099320 is a wasteful number, since it uses less digits than its factorization.

123917099320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441892 (or 1441888 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 46.

The spelling of 123917099320 in words is "one hundred twenty-three billion, nine hundred seventeen million, ninety-nine thousand, three hundred twenty".