113101020 has 72 divisors (see below), whose sum is σ = 354157440. Its totient is φ = 29185920.

The previous prime is 113101019. The next prime is 113101057. The reversal of 113101020 is 20101311.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 113100993 and 113101011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4555 + ... + 15714.

Almost surely, 2^113101020 is an apocalyptic number.

113101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113101020 is an abundant number, since it is smaller than the sum of its proper divisors (241056420).

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

113101020 is a wasteful number, since it uses less digits than its factorization.

113101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20315 (or 20310 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 113101020 is about 10634.8963323579. The cubic root of 113101020 is about 483.6028376750.

Adding to 113101020 its reverse (20101311), we get a palindrome (133202331).

The spelling of 113101020 in words is "one hundred thirteen million, one hundred one thousand, twenty".