423201223 has 4 divisors (see below), whose sum is σ = 425207128. Its totient is φ = 421195320.

The previous prime is 423201199. The next prime is 423201271. The reversal of 423201223 is 322102324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423201223 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 423201223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423201323) 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, 1002636 + ... + 1003057.

It is an arithmetic number, because the mean of its divisors is an integer number (106301782).

Almost surely, 2^423201223 is an apocalyptic number.

423201223 is a deficient number, since it is larger than the sum of its proper divisors (2005905).

423201223 is a wasteful number, since it uses less digits than its factorization.

423201223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005904.

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

The square root of 423201223 is about 20571.8551180976. The cubic root of 423201223 is about 750.7850878220.

Adding to 423201223 its reverse (322102324), we get a palindrome (745303547).

The spelling of 423201223 in words is "four hundred twenty-three million, two hundred one thousand, two hundred twenty-three".