113132131320 has 128 divisors (see below), whose sum is σ = 367546636800. Its totient is φ = 27692265984.

The previous prime is 113132131247. The next prime is 113132131331. The reversal of 113132131320 is 23131231311.

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 31 ways as a sum of consecutive naturals, for example, 76669 + ... + 481811.

It is an arithmetic number, because the mean of its divisors is an integer number (2871458100).

Almost surely, 2^113132131320 is an apocalyptic number.

113132131320 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 113132131320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183773318400).

113132131320 is an abundant number, since it is smaller than the sum of its proper divisors (254414505480).

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

113132131320 is a wasteful number, since it uses less digits than its factorization.

113132131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405349 (or 405345 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 113132131320 its reverse (23131231311), we get a palindrome (136263362631).

Subtracting from 113132131320 its reverse (23131231311), we obtain a palindrome (90000900009).

The spelling of 113132131320 in words is "one hundred thirteen billion, one hundred thirty-two million, one hundred thirty-one thousand, three hundred twenty".