204000023 has 2 divisors, whose sum is σ = 204000024. Its totient is φ = 204000022.

The previous prime is 204000011. The next prime is 204000031. The reversal of 204000023 is 320000402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204000023 - 2⁶ = 203999959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203999968 and 204000013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204000073) 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 as a sum of consecutive naturals, namely, 102000011 + 102000012.

It is an arithmetic number, because the mean of its divisors is an integer number (102000012).

Almost surely, 2^204000023 is an apocalyptic number.

204000023 is a deficient number, since it is larger than the sum of its proper divisors (1).

204000023 is an equidigital number, since it uses as much as digits as its factorization.

204000023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 204000023 is about 14282.8576622467. The cubic root of 204000023 is about 588.6765538118.

Adding to 204000023 its reverse (320000402), we get a palindrome (524000425).

The spelling of 204000023 in words is "two hundred four million, twenty-three", and thus it is an aban number.