113639145100 has 72 divisors (see below), whose sum is σ = 265889575728. Its totient is φ = 41907936000.

The previous prime is 113639145091. The next prime is 113639145143. The reversal of 113639145100 is 1541936311.

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, 1022250 + ... + 1127950.

It is an arithmetic number, because the mean of its divisors is an integer number (3692910774).

Almost surely, 2^113639145100 is an apocalyptic number.

113639145100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113639145100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132944787864).

113639145100 is an abundant number, since it is smaller than the sum of its proper divisors (152250430628).

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

113639145100 is a wasteful number, since it uses less digits than its factorization.

113639145100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106555 (or 106548 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 113639145100 in words is "one hundred thirteen billion, six hundred thirty-nine million, one hundred forty-five thousand, one hundred".