113021108136 has 128 divisors (see below), whose sum is σ = 317293766400. Its totient is φ = 37272856320.

The previous prime is 113021108131. The next prime is 113021108147. The reversal of 113021108136 is 631801120311.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (113021108131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35528466 + ... + 35531646.

It is an arithmetic number, because the mean of its divisors is an integer number (2478857550).

Almost surely, 2^113021108136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113021108136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158646883200).

113021108136 is an abundant number, since it is smaller than the sum of its proper divisors (204272658264).

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

113021108136 is a wasteful number, since it uses less digits than its factorization.

113021108136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4896 (or 4886 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

Adding to 113021108136 its reverse (631801120311), we get a palindrome (744822228447).

The spelling of 113021108136 in words is "one hundred thirteen billion, twenty-one million, one hundred eight thousand, one hundred thirty-six".