113131800 has 72 divisors (see below), whose sum is σ = 379940340. Its totient is φ = 30168000.

The previous prime is 113131789. The next prime is 113131819. The reversal of 113131800 is 8131311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 29626 + ... + 33225.

Almost surely, 2^113131800 is an apocalyptic number.

113131800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113131800 is an abundant number, since it is smaller than the sum of its proper divisors (266808540).

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

113131800 is a wasteful number, since it uses less digits than its factorization.

113131800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62873 (or 62861 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 113131800 is about 10636.3433566240. The cubic root of 113131800 is about 483.6467039025.

The spelling of 113131800 in words is "one hundred thirteen million, one hundred thirty-one thousand, eight hundred".