4423123 has 4 divisors (see below), whose sum is σ = 4517280. Its totient is φ = 4328968.

The previous prime is 4423117. The next prime is 4423127. The reversal of 4423123 is 3213244.

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 4423123 - 2¹⁷ = 4292051 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 4423123.

It is not an unprimeable number, because it can be changed into a prime (4423127) 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, 47008 + ... + 47101.

It is an arithmetic number, because the mean of its divisors is an integer number (1129320).

Almost surely, 2^4423123 is an apocalyptic number.

4423123 is a deficient number, since it is larger than the sum of its proper divisors (94157).

4423123 is an equidigital number, since it uses as much as digits as its factorization.

4423123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94156.

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

The square root of 4423123 is about 2103.1222028213. The cubic root of 4423123 is about 164.1508007147.

Adding to 4423123 its reverse (3213244), we get a palindrome (7636367).

The spelling of 4423123 in words is "four million, four hundred twenty-three thousand, one hundred twenty-three".