111324442423 has 4 divisors (see below), whose sum is σ = 114039672768. Its totient is φ = 108609212080.

The previous prime is 111324442367. The next prime is 111324442507. The reversal of 111324442423 is 324244423111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111324442423 is a prime.

It is a super-2 number, since 2×111324442423² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111324442123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1357615111 + ... + 1357615192.

It is an arithmetic number, because the mean of its divisors is an integer number (28509918192).

Almost surely, 2^111324442423 is an apocalyptic number.

111324442423 is a deficient number, since it is larger than the sum of its proper divisors (2715230345).

111324442423 is an equidigital number, since it uses as much as digits as its factorization.

111324442423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715230344.

The product of its digits is 18432, while the sum is 31.

Adding to 111324442423 its reverse (324244423111), we get a palindrome (435568865534).

The spelling of 111324442423 in words is "one hundred eleven billion, three hundred twenty-four million, four hundred forty-two thousand, four hundred twenty-three".