113123120 has 40 divisors (see below), whose sum is σ = 286923600. Its totient is φ = 41135360.

The previous prime is 113123089. The next prime is 113123137. The reversal of 113123120 is 21321311.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 113123095 and 113123104.

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, 63395 + ... + 65154.

It is an arithmetic number, because the mean of its divisors is an integer number (7173090).

Almost surely, 2^113123120 is an apocalyptic number.

113123120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113123120 is an abundant number, since it is smaller than the sum of its proper divisors (173800480).

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

113123120 is a wasteful number, since it uses less digits than its factorization.

113123120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128573 (or 128567 counting only the distinct ones).

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

The square root of 113123120 is about 10635.9353138311. The cubic root of 113123120 is about 483.6343343749.

Adding to 113123120 its reverse (21321311), we get a palindrome (134444431).

The spelling of 113123120 in words is "one hundred thirteen million, one hundred twenty-three thousand, one hundred twenty".