113101220 has 24 divisors (see below), whose sum is σ = 237734784. Its totient is φ = 45198176.

The previous prime is 113101217. The next prime is 113101231. The reversal of 113101220 is 22101311.

It is a super-3 number, since 3×113101220³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27839 + ... + 31641.

It is an arithmetic number, because the mean of its divisors is an integer number (9905616).

Almost surely, 2^113101220 is an apocalyptic number.

113101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113101220 is an abundant number, since it is smaller than the sum of its proper divisors (124633564).

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

113101220 is a wasteful number, since it uses less digits than its factorization.

113101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5299 (or 5297 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 113101220 is about 10634.9057353603. The cubic root of 113101220 is about 483.6031227314.

Adding to 113101220 its reverse (22101311), we get a palindrome (135202531).

Subtracting from 113101220 its reverse (22101311), we obtain a palindrome (90999909).

The spelling of 113101220 in words is "one hundred thirteen million, one hundred one thousand, two hundred twenty".