113121303321 has 16 divisors (see below), whose sum is σ = 171985330944. Its totient is φ = 65518220544.

The previous prime is 113121303311. The next prime is 113121303349. The reversal of 113121303321 is 123303121311.

It is a happy number.

It is not a de Polignac number, because 113121303321 - 2¹⁰ = 113121302297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113121303301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85309521 + ... + 85310846.

It is an arithmetic number, because the mean of its divisors is an integer number (10749083184).

Almost surely, 2^113121303321 is an apocalyptic number.

It is an amenable number.

113121303321 is a deficient number, since it is larger than the sum of its proper divisors (58864027623).

113121303321 is a wasteful number, since it uses less digits than its factorization.

113121303321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170620400.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 113121303321 its reverse (123303121311), we get a palindrome (236424424632).

The spelling of 113121303321 in words is "one hundred thirteen billion, one hundred twenty-one million, three hundred three thousand, three hundred twenty-one".