204223023 has 24 divisors (see below), whose sum is σ = 314653248. Its totient is φ = 127191552.

The previous prime is 204223021. The next prime is 204223027. The reversal of 204223023 is 320322402.

It is not a de Polignac number, because 204223023 - 2¹ = 204223021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204222987 and 204223005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204223021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16090 + ... + 25832.

It is an arithmetic number, because the mean of its divisors is an integer number (13110552).

Almost surely, 2^204223023 is an apocalyptic number.

204223023 is a deficient number, since it is larger than the sum of its proper divisors (110430225).

204223023 is a wasteful number, since it uses less digits than its factorization.

204223023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9903 (or 9900 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 204223023 is about 14290.6620910299. The cubic root of 204223023 is about 588.8909770992.

Adding to 204223023 its reverse (320322402), we get a palindrome (524545425).

The spelling of 204223023 in words is "two hundred four million, two hundred twenty-three thousand, twenty-three".