113013213121 has 8 divisors (see below), whose sum is σ = 117982794600. Its totient is φ = 108115136640.

The previous prime is 113013213113. The next prime is 113013213143. The reversal of 113013213121 is 121312310311.

It can be written as a sum of positive squares in 4 ways, for example, as 40294540225 + 72718672896 = 200735^2 + 269664^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113013213121 - 2³ = 113013213113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113013211121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17873020 + ... + 17879341.

It is an arithmetic number, because the mean of its divisors is an integer number (14747849325).

Almost surely, 2^113013213121 is an apocalyptic number.

It is an amenable number.

113013213121 is a deficient number, since it is larger than the sum of its proper divisors (4969581479).

113013213121 is a wasteful number, since it uses less digits than its factorization.

113013213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35752499.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 113013213121 its reverse (121312310311), we get a palindrome (234325523432).

The spelling of 113013213121 in words is "one hundred thirteen billion, thirteen million, two hundred thirteen thousand, one hundred twenty-one".