113311020 has 96 divisors (see below), whose sum is σ = 333704448. Its totient is φ = 28691712.

The previous prime is 113311013. The next prime is 113311027. The reversal of 113311020 is 20113311.

It is an interprime number because it is at equal distance from previous prime (113311013) and next prime (113311027).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 113310987 and 113311005.

It is not an unprimeable number, because it can be changed into a prime (113311027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94867 + ... + 96053.

It is an arithmetic number, because the mean of its divisors is an integer number (3476088).

Almost surely, 2^113311020 is an apocalyptic number.

113311020 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 113311020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166852224).

113311020 is an abundant number, since it is smaller than the sum of its proper divisors (220393428).

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

113311020 is a wasteful number, since it uses less digits than its factorization.

113311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279 (or 1277 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 113311020 is about 10644.7649105088. The cubic root of 113311020 is about 483.9019620204.

Adding to 113311020 its reverse (20113311), we get a palindrome (133424331).

The spelling of 113311020 in words is "one hundred thirteen million, three hundred eleven thousand, twenty".