113122131 has 16 divisors (see below), whose sum is σ = 164855808. Its totient is φ = 68688000.

The previous prime is 113122129. The next prime is 113122169. The reversal of 113122131 is 131221311.

It is a happy number.

It is not a de Polignac number, because 113122131 - 2¹ = 113122129 is a prime.

It is a super-2 number, since 2×113122131² = 25593233043962322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 113122131.

It is not an unprimeable number, because it can be changed into a prime (113122171) 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, 34195 + ... + 37356.

It is an arithmetic number, because the mean of its divisors is an integer number (10303488).

Almost surely, 2^113122131 is an apocalyptic number.

113122131 is a deficient number, since it is larger than the sum of its proper divisors (51733677).

113122131 is a wasteful number, since it uses less digits than its factorization.

113122131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71602.

The product of its digits is 36, while the sum is 15.

The square root of 113122131 is about 10635.8888204042. Note that the first 4 decimals coincide. The cubic root of 113122131 is about 483.6329249497.

Adding to 113122131 its reverse (131221311), we get a palindrome (244343442).

The spelling of 113122131 in words is "one hundred thirteen million, one hundred twenty-two thousand, one hundred thirty-one".