113402120 has 32 divisors (see below), whose sum is σ = 274783320. Its totient is φ = 41871360.

The previous prime is 113402099. The next prime is 113402147. The reversal of 113402120 is 21204311.

It can be written as a sum of positive squares in 4 ways, for example, as 54081316 + 59320804 = 7354^2 + 7702^2 .

It is a junction number, because it is equal to n+sod(n) for n = 113402095 and 113402104.

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, 108521 + ... + 109560.

Almost surely, 2^113402120 is an apocalyptic number.

113402120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113402120 is an abundant number, since it is smaller than the sum of its proper divisors (161381200).

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

113402120 is a wasteful number, since it uses less digits than its factorization.

113402120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218105 (or 218101 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 113402120 is about 10649.0431495041. The cubic root of 113402120 is about 484.0316100749.

Adding to 113402120 its reverse (21204311), we get a palindrome (134606431).

The spelling of 113402120 in words is "one hundred thirteen million, four hundred two thousand, one hundred twenty".