113712523 has 4 divisors (see below), whose sum is σ = 113740560. Its totient is φ = 113684488.

The previous prime is 113712517. The next prime is 113712527. The reversal of 113712523 is 325217311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325217311 = 31 ⋅10490881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113712523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113712527) 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, 6640 + ... + 16477.

It is an arithmetic number, because the mean of its divisors is an integer number (28435140).

Almost surely, 2^113712523 is an apocalyptic number.

113712523 is a deficient number, since it is larger than the sum of its proper divisors (28037).

113712523 is an equidigital number, since it uses as much as digits as its factorization.

113712523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28036.

The product of its digits is 1260, while the sum is 25.

The square root of 113712523 is about 10663.6074102529. The cubic root of 113712523 is about 484.4728363621.

Adding to 113712523 its reverse (325217311), we get a palindrome (438929834).

The spelling of 113712523 in words is "one hundred thirteen million, seven hundred twelve thousand, five hundred twenty-three".