113011121131 has 4 divisors (see below), whose sum is σ = 113132770200. Its totient is φ = 112889472064.

The previous prime is 113011121089. The next prime is 113011121137. The reversal of 113011121131 is 131121110311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131121110311 = 19 ⋅6901111069.

It is a cyclic number.

It is not a de Polignac number, because 113011121131 - 2⁹ = 113011120619 is a prime.

It is a super-2 number, since 2×113011121131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113011121137) 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, 60823141 + ... + 60824998.

It is an arithmetic number, because the mean of its divisors is an integer number (28283192550).

Almost surely, 2^113011121131 is an apocalyptic number.

113011121131 is a deficient number, since it is larger than the sum of its proper divisors (121649069).

113011121131 is an equidigital number, since it uses as much as digits as its factorization.

113011121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121649068.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 113011121131 its reverse (131121110311), we get a palindrome (244132231442).

The spelling of 113011121131 in words is "one hundred thirteen billion, eleven million, one hundred twenty-one thousand, one hundred thirty-one".