113111320 has 32 divisors (see below), whose sum is σ = 290858400. Its totient is φ = 38780928.

The previous prime is 113111311. The next prime is 113111329. The reversal of 113111320 is 23111311.

It is an interprime number because it is at equal distance from previous prime (113111311) and next prime (113111329).

It is a self number, because there is not a number n which added to its sum of digits gives 113111320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113111329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201705 + ... + 202264.

It is an arithmetic number, because the mean of its divisors is an integer number (9089325).

Almost surely, 2^113111320 is an apocalyptic number.

113111320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113111320 is an abundant number, since it is smaller than the sum of its proper divisors (177747080).

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

113111320 is a wasteful number, since it uses less digits than its factorization.

113111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403987 (or 403983 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 113111320 is about 10635.3805761712. The cubic root of 113111320 is about 483.6175176429.

Adding to 113111320 its reverse (23111311), we get a palindrome (136222631).

Subtracting from 113111320 its reverse (23111311), we obtain a palindrome (90000009).

The spelling of 113111320 in words is "one hundred thirteen million, one hundred eleven thousand, three hundred twenty".