423320023 has 16 divisors (see below), whose sum is σ = 495129600. Its totient is φ = 354377376.

The previous prime is 423320017. The next prime is 423320041. The reversal of 423320023 is 320023324.

It is a cyclic number.

It is not a de Polignac number, because 423320023 - 2²¹ = 421222871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423320123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200628 + ... + 202726.

It is an arithmetic number, because the mean of its divisors is an integer number (30945600).

Almost surely, 2^423320023 is an apocalyptic number.

423320023 is a deficient number, since it is larger than the sum of its proper divisors (71809577).

423320023 is a wasteful number, since it uses less digits than its factorization.

423320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 423320023 is about 20574.7423556165. The cubic root of 423320023 is about 750.8553340932.

Adding to 423320023 its reverse (320023324), we get a palindrome (743343347).

The spelling of 423320023 in words is "four hundred twenty-three million, three hundred twenty thousand, twenty-three".