113112320 has 72 divisors (see below), whose sum is σ = 285260640. Its totient is φ = 42854400.

The previous prime is 113112319. The next prime is 113112331. The reversal of 113112320 is 23211311.

It is a junction number, because it is equal to n+sod(n) for n = 113112295 and 113112304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21995 + ... + 26645.

Almost surely, 2^113112320 is an apocalyptic number.

113112320 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 113112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142630320).

113112320 is an abundant number, since it is smaller than the sum of its proper divisors (172148320).

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

113112320 is an equidigital number, since it uses as much as digits as its factorization.

113112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4691 (or 4677 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 113112320 is about 10635.4275889595. The cubic root of 113112320 is about 483.6189428351.

Adding to 113112320 its reverse (23211311), we get a palindrome (136323631).

It can be divided in two parts, 11311 and 2320, that added together give a palindrome (13631).

The spelling of 113112320 in words is "one hundred thirteen million, one hundred twelve thousand, three hundred twenty".