113321231 has 4 divisors (see below), whose sum is σ = 113520264. Its totient is φ = 113122200.

The previous prime is 113321227. The next prime is 113321233. The reversal of 113321231 is 132123311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132123311 = 353 ⋅374287.

It is a cyclic number.

It is not a de Polignac number, because 113321231 - 2² = 113321227 is a prime.

It is a super-2 number, since 2×113321231² = 25683402790710722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113321233) 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, 98660 + ... + 99801.

It is an arithmetic number, because the mean of its divisors is an integer number (28380066).

Almost surely, 2^113321231 is an apocalyptic number.

113321231 is a deficient number, since it is larger than the sum of its proper divisors (199033).

113321231 is an equidigital number, since it uses as much as digits as its factorization.

113321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199032.

The product of its digits is 108, while the sum is 17.

The square root of 113321231 is about 10645.2445251389. The cubic root of 113321231 is about 483.9164971601.

Adding to 113321231 its reverse (132123311), we get a palindrome (245444542).

The spelling of 113321231 in words is "one hundred thirteen million, three hundred twenty-one thousand, two hundred thirty-one".