113111131321 has 16 divisors (see below), whose sum is σ = 117900256320. Its totient is φ = 108420801280.

The previous prime is 113111131297. The next prime is 113111131351. The reversal of 113111131321 is 123131111311.

It is a cyclic number.

It is not a de Polignac number, because 113111131321 - 2⁷ = 113111131193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113111131351) 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, 4615326 + ... + 4639768.

It is an arithmetic number, because the mean of its divisors is an integer number (7368766020).

Almost surely, 2^113111131321 is an apocalyptic number.

It is an amenable number.

113111131321 is a deficient number, since it is larger than the sum of its proper divisors (4789124999).

113111131321 is a wasteful number, since it uses less digits than its factorization.

113111131321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26456.

The product of its digits is 54, while the sum is 19.

Adding to 113111131321 its reverse (123131111311), we get a palindrome (236242242632).

The spelling of 113111131321 in words is "one hundred thirteen billion, one hundred eleven million, one hundred thirty-one thousand, three hundred twenty-one".