111324423 has 16 divisors (see below), whose sum is σ = 173100800. Its totient is φ = 63613368.

The previous prime is 111324403. The next prime is 111324427. The reversal of 111324423 is 324423111.

It is not a de Polignac number, because 111324423 - 2⁸ = 111324167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111324423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111324427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53065 + ... + 55122.

It is an arithmetic number, because the mean of its divisors is an integer number (10818800).

Almost surely, 2^111324423 is an apocalyptic number.

111324423 is a deficient number, since it is larger than the sum of its proper divisors (61776377).

111324423 is an equidigital number, since it uses as much as digits as its factorization.

111324423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108211 (or 108197 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 111324423 is about 10551.0389535818. The cubic root of 111324423 is about 481.0573090834.

Adding to 111324423 its reverse (324423111), we get a palindrome (435747534).

The spelling of 111324423 in words is "one hundred eleven million, three hundred twenty-four thousand, four hundred twenty-three".