113202123320 has 128 divisors (see below), whose sum is σ = 300578826240. Its totient is φ = 37827095040.

The previous prime is 113202123311. The next prime is 113202123347. The reversal of 113202123320 is 23321202311.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 113202123292 and 113202123301.

It is a congruent number.

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, 1231187 + ... + 1319933.

It is an arithmetic number, because the mean of its divisors is an integer number (2348272080).

Almost surely, 2^113202123320 is an apocalyptic number.

113202123320 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 113202123320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150289413120).

113202123320 is an abundant number, since it is smaller than the sum of its proper divisors (187376702920).

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

113202123320 is a wasteful number, since it uses less digits than its factorization.

113202123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89005 (or 89001 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 113202123320 its reverse (23321202311), we get a palindrome (136523325631).

The spelling of 113202123320 in words is "one hundred thirteen billion, two hundred two million, one hundred twenty-three thousand, three hundred twenty".