113210131 has 4 divisors (see below), whose sum is σ = 113382064. Its totient is φ = 113038200.

The previous prime is 113210129. The next prime is 113210137. The reversal of 113210131 is 131012311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131012311 = 127 ⋅1031593.

It is a cyclic number.

It is not a de Polignac number, because 113210131 - 2¹ = 113210129 is a prime.

It is a super-2 number, since 2×113210131² = 25633067522074322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113210137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84975 + ... + 86296.

It is an arithmetic number, because the mean of its divisors is an integer number (28345516).

Almost surely, 2^113210131 is an apocalyptic number.

113210131 is a deficient number, since it is larger than the sum of its proper divisors (171933).

113210131 is an equidigital number, since it uses as much as digits as its factorization.

113210131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171932.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 113210131 is about 10640.0249529783. The cubic root of 113210131 is about 483.7583017313.

Adding to 113210131 its reverse (131012311), we get a palindrome (244222442).

The spelling of 113210131 in words is "one hundred thirteen million, two hundred ten thousand, one hundred thirty-one".