204404325023 has 2 divisors, whose sum is σ = 204404325024. Its totient is φ = 204404325022.

The previous prime is 204404324959. The next prime is 204404325067. The reversal of 204404325023 is 320523404402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204404325023 - 2⁶ = 204404324959 is a prime.

It is a super-2 number, since 2×204404325023² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204404325623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102202162511 + 102202162512.

It is an arithmetic number, because the mean of its divisors is an integer number (102202162512).

Almost surely, 2^204404325023 is an apocalyptic number.

204404325023 is a deficient number, since it is larger than the sum of its proper divisors (1).

204404325023 is an equidigital number, since it uses as much as digits as its factorization.

204404325023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 204404325023 its reverse (320523404402), we get a palindrome (524927729425).

The spelling of 204404325023 in words is "two hundred four billion, four hundred four million, three hundred twenty-five thousand, twenty-three".