113202131 has 4 divisors (see below), whose sum is σ = 129373872. Its totient is φ = 97030392.

The previous prime is 113202127. The next prime is 113202137. The reversal of 113202131 is 131202311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131202311 = 17 ⋅7717783.

It is a cyclic number.

It is not a de Polignac number, because 113202131 - 2² = 113202127 is a prime.

It is a super-2 number, since 2×113202131² = 25629444925882322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113202137) 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, 8085860 + ... + 8085873.

It is an arithmetic number, because the mean of its divisors is an integer number (32343468).

Almost surely, 2^113202131 is an apocalyptic number.

113202131 is a deficient number, since it is larger than the sum of its proper divisors (16171741).

113202131 is an equidigital number, since it uses as much as digits as its factorization.

113202131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16171740.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 113202131 is about 10639.6490073686. The cubic root of 113202131 is about 483.7469065274.

Adding to 113202131 its reverse (131202311), we get a palindrome (244404442).

The spelling of 113202131 in words is "one hundred thirteen million, two hundred two thousand, one hundred thirty-one".