113321615253 has 64 divisors (see below), whose sum is σ = 189229105152. Its totient is φ = 58603322880.

The previous prime is 113321615233. The next prime is 113321615321. The reversal of 113321615253 is 352516123311.

It is not a de Polignac number, because 113321615253 - 2⁵ = 113321615221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113321615213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68388801 + ... + 68390457.

It is an arithmetic number, because the mean of its divisors is an integer number (2956704768).

Almost surely, 2^113321615253 is an apocalyptic number.

It is an amenable number.

113321615253 is a deficient number, since it is larger than the sum of its proper divisors (75907489899).

113321615253 is a wasteful number, since it uses less digits than its factorization.

113321615253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834.

The product of its digits is 16200, while the sum is 33.

Adding to 113321615253 its reverse (352516123311), we get a palindrome (465837738564).

The spelling of 113321615253 in words is "one hundred thirteen billion, three hundred twenty-one million, six hundred fifteen thousand, two hundred fifty-three".