113122133220 has 96 divisors (see below), whose sum is σ = 325923978240. Its totient is φ = 29298032640.

The previous prime is 113122133209. The next prime is 113122133239. The reversal of 113122133220 is 22331221311.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 445476 + ... + 651684.

It is an arithmetic number, because the mean of its divisors is an integer number (3395041440).

Almost surely, 2^113122133220 is an apocalyptic number.

113122133220 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 113122133220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162961989120).

113122133220 is an abundant number, since it is smaller than the sum of its proper divisors (212801845020).

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

113122133220 is a wasteful number, since it uses less digits than its factorization.

113122133220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206485 (or 206483 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 113122133220 its reverse (22331221311), we get a palindrome (135453354531).

The spelling of 113122133220 in words is "one hundred thirteen billion, one hundred twenty-two million, one hundred thirty-three thousand, two hundred twenty".