113122131211 has 4 divisors (see below), whose sum is σ = 115881207624. Its totient is φ = 110363054800.

The previous prime is 113122131193. The next prime is 113122131299. The reversal of 113122131211 is 112131221311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112131221311 = 37567 ⋅2984833.

It is a cyclic number.

It is not a de Polignac number, because 113122131211 - 2²³ = 113113742603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113122138211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1379538145 + ... + 1379538226.

It is an arithmetic number, because the mean of its divisors is an integer number (28970301906).

Almost surely, 2^113122131211 is an apocalyptic number.

113122131211 is a deficient number, since it is larger than the sum of its proper divisors (2759076413).

113122131211 is an equidigital number, since it uses as much as digits as its factorization.

113122131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759076412.

The product of its digits is 72, while the sum is 19.

Adding to 113122131211 its reverse (112131221311), we get a palindrome (225253352522).

The spelling of 113122131211 in words is "one hundred thirteen billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred eleven".