111310523 has 4 divisors (see below), whose sum is σ = 113678880. Its totient is φ = 108942168.

The previous prime is 111310513. The next prime is 111310567. The reversal of 111310523 is 325013111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325013111 = 359 ⋅905329.

It is a cyclic number.

It is not a de Polignac number, because 111310523 - 2⁸ = 111310267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111310513) 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, 1184108 + ... + 1184201.

It is an arithmetic number, because the mean of its divisors is an integer number (28419720).

Almost surely, 2^111310523 is an apocalyptic number.

111310523 is a deficient number, since it is larger than the sum of its proper divisors (2368357).

111310523 is an equidigital number, since it uses as much as digits as its factorization.

111310523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368356.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 111310523 is about 10550.3802301149. The cubic root of 111310523 is about 481.0372865979.

Adding to 111310523 its reverse (325013111), we get a palindrome (436323634).

The spelling of 111310523 in words is "one hundred eleven million, three hundred ten thousand, five hundred twenty-three".