423122223 has 4 divisors (see below), whose sum is σ = 564162968. Its totient is φ = 282081480.

The previous prime is 423122221. The next prime is 423122233. The reversal of 423122223 is 322221324.

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

It is not a de Polignac number, because 423122223 - 2¹ = 423122221 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 423122223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423122221) 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, 70520368 + ... + 70520373.

It is an arithmetic number, because the mean of its divisors is an integer number (141040742).

Almost surely, 2^423122223 is an apocalyptic number.

423122223 is a deficient number, since it is larger than the sum of its proper divisors (141040745).

423122223 is a wasteful number, since it uses less digits than its factorization.

423122223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141040744.

The product of its digits is 1152, while the sum is 21.

The square root of 423122223 is about 20569.9349294061. The cubic root of 423122223 is about 750.7383679562.

Adding to 423122223 its reverse (322221324), we get a palindrome (745343547).

The spelling of 423122223 in words is "four hundred twenty-three million, one hundred twenty-two thousand, two hundred twenty-three".