113313220 has 12 divisors (see below), whose sum is σ = 237957804. Its totient is φ = 45325280.

The previous prime is 113313209. The next prime is 113313223. The reversal of 113313220 is 22313311.

It can be written as a sum of positive squares in 2 ways, for example, as 62504836 + 50808384 = 7906^2 + 7128^2 .

It is a junction number, because it is equal to n+sod(n) for n = 113313194 and 113313203.

It is not an unprimeable number, because it can be changed into a prime (113313223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2832811 + ... + 2832850.

It is an arithmetic number, because the mean of its divisors is an integer number (19829817).

Almost surely, 2^113313220 is an apocalyptic number.

113313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113313220 is an abundant number, since it is smaller than the sum of its proper divisors (124644584).

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

113313220 is a wasteful number, since it uses less digits than its factorization.

113313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5665670 (or 5665668 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 113313220 is about 10644.8682471884. The cubic root of 113313220 is about 483.9050937470.

Adding to 113313220 its reverse (22313311), we get a palindrome (135626531).

Subtracting from 113313220 its reverse (22313311), we obtain a palindrome (90999909).

The spelling of 113313220 in words is "one hundred thirteen million, three hundred thirteen thousand, two hundred twenty".