113231123 has 4 divisors (see below), whose sum is σ = 113432808. Its totient is φ = 113029440.

The previous prime is 113231119. The next prime is 113231141. The reversal of 113231123 is 321132311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321132311 = 191 ⋅1681321.

It is a cyclic number.

It is not a de Polignac number, because 113231123 - 2² = 113231119 is a prime.

It is a super-2 number, since 2×113231123² = 25642574431682258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113231143) 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, 99998 + ... + 101123.

It is an arithmetic number, because the mean of its divisors is an integer number (28358202).

Almost surely, 2^113231123 is an apocalyptic number.

113231123 is a deficient number, since it is larger than the sum of its proper divisors (201685).

113231123 is an equidigital number, since it uses as much as digits as its factorization.

113231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201684.

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

The square root of 113231123 is about 10641.0113711057. The cubic root of 113231123 is about 483.7882001941.

Adding to 113231123 its reverse (321132311), we get a palindrome (434363434).

The spelling of 113231123 in words is "one hundred thirteen million, two hundred thirty-one thousand, one hundred twenty-three".