204321033 has 18 divisors (see below), whose sum is σ = 343315674. Its totient is φ = 116754624.

The previous prime is 204320971. The next prime is 204321043. The reversal of 204321033 is 330123402.

It can be written as a sum of positive squares in only one way, i.e., 162486009 + 41835024 = 12747^2 + 6468^2 .

It is not a de Polignac number, because 204321033 - 2¹⁴ = 204304649 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 204320997 and 204321015.

It is not an unprimeable number, because it can be changed into a prime (204321043) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 231216 + ... + 232097.

It is an arithmetic number, because the mean of its divisors is an integer number (19073093).

Almost surely, 2^204321033 is an apocalyptic number.

It is an amenable number.

204321033 is a deficient number, since it is larger than the sum of its proper divisors (138994641).

204321033 is a wasteful number, since it uses less digits than its factorization.

204321033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463333 (or 463323 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 204321033 is about 14294.0908420228. The cubic root of 204321033 is about 588.9851682000.

Adding to 204321033 its reverse (330123402), we get a palindrome (534444435).

The spelling of 204321033 in words is "two hundred four million, three hundred twenty-one thousand, thirty-three".