22423123 has 4 divisors (see below), whose sum is σ = 22707040. Its totient is φ = 22139208.

The previous prime is 22423087. The next prime is 22423133. The reversal of 22423123 is 32132422.

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

It is a cyclic number.

It is not a de Polignac number, because 22423123 - 2¹⁷ = 22292051 is a prime.

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 22423123.

It is not an unprimeable number, because it can be changed into a prime (22423133) 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, 141840 + ... + 141997.

It is an arithmetic number, because the mean of its divisors is an integer number (5676760).

Almost surely, 2^22423123 is an apocalyptic number.

22423123 is a deficient number, since it is larger than the sum of its proper divisors (283917).

22423123 is an equidigital number, since it uses as much as digits as its factorization.

22423123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283916.

The product of its digits is 576, while the sum is 19.

The square root of 22423123 is about 4735.3060091192. The cubic root of 22423123 is about 281.9889127643.

Adding to 22423123 its reverse (32132422), we get a palindrome (54555545).

The spelling of 22423123 in words is "twenty-two million, four hundred twenty-three thousand, one hundred twenty-three".