113303111220 has 144 divisors (see below), whose sum is σ = 370320612480. Its totient is φ = 27875144448.

The previous prime is 113303111191. The next prime is 113303111227. The reversal of 113303111220 is 22111303311.

113303111220 is a `hidden beast` number, since 1 + 1 + 330 + 3 + 111 + 220 = 666.

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 = 113303111193 and 113303111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113303111227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4759387 + ... + 4783133.

It is an arithmetic number, because the mean of its divisors is an integer number (2571670920).

Almost surely, 2^113303111220 is an apocalyptic number.

113303111220 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 113303111220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185160306240).

113303111220 is an abundant number, since it is smaller than the sum of its proper divisors (257017501260).

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

113303111220 is a wasteful number, since it uses less digits than its factorization.

113303111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25814 (or 25809 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 113303111220 its reverse (22111303311), we get a palindrome (135414414531).

The spelling of 113303111220 in words is "one hundred thirteen billion, three hundred three million, one hundred eleven thousand, two hundred twenty".