111424223 has 4 divisors (see below), whose sum is σ = 114015528. Its totient is φ = 108832920.

The previous prime is 111424219. The next prime is 111424231. The reversal of 111424223 is 322424111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322424111 = 3023 ⋅106657.

It is a cyclic number.

It is not a de Polignac number, because 111424223 - 2² = 111424219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111424195 and 111424204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111424253) 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, 1295588 + ... + 1295673.

It is an arithmetic number, because the mean of its divisors is an integer number (28503882).

Almost surely, 2^111424223 is an apocalyptic number.

111424223 is a deficient number, since it is larger than the sum of its proper divisors (2591305).

111424223 is an equidigital number, since it uses as much as digits as its factorization.

111424223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591304.

The product of its digits is 384, while the sum is 20.

The square root of 111424223 is about 10555.7672861806. The cubic root of 111424223 is about 481.2010187288.

Adding to 111424223 its reverse (322424111), we get a palindrome (433848334).

The spelling of 111424223 in words is "one hundred eleven million, four hundred twenty-four thousand, two hundred twenty-three".