113331131320 has 96 divisors (see below), whose sum is σ = 282301916400. Its totient is φ = 40914593280.

The previous prime is 113331131297. The next prime is 113331131327. The reversal of 113331131320 is 23131133311.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 113331131291 and 113331131300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113331131327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 588532 + ... + 756988.

Almost surely, 2^113331131320 is an apocalyptic number.

113331131320 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 113331131320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141150958200).

113331131320 is an abundant number, since it is smaller than the sum of its proper divisors (168970785080).

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

113331131320 is a wasteful number, since it uses less digits than its factorization.

113331131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168629 (or 168614 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 113331131320 its reverse (23131133311), we get a palindrome (136462264631).

The spelling of 113331131320 in words is "one hundred thirteen billion, three hundred thirty-one million, one hundred thirty-one thousand, three hundred twenty".