113236020 has 72 divisors (see below), whose sum is σ = 345631104. Its totient is φ = 30007488.

The previous prime is 113236001. The next prime is 113236043. The reversal of 113236020 is 20632311.

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

It is a junction number, because it is equal to n+sod(n) for n = 113235984 and 113236002.

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, 28177 + ... + 31943.

It is an arithmetic number, because the mean of its divisors is an integer number (4800432).

Almost surely, 2^113236020 is an apocalyptic number.

113236020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113236020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172815552).

113236020 is an abundant number, since it is smaller than the sum of its proper divisors (232395084).

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

113236020 is a wasteful number, since it uses less digits than its factorization.

113236020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3949 (or 3944 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 113236020 is about 10641.2414689265. The cubic root of 113236020 is about 483.7951743563.

Adding to 113236020 its reverse (20632311), we get a palindrome (133868331).

The spelling of 113236020 in words is "one hundred thirteen million, two hundred thirty-six thousand, twenty".