204001323 has 4 divisors (see below), whose sum is σ = 272001768. Its totient is φ = 136000880.

The previous prime is 204001321. The next prime is 204001337. The reversal of 204001323 is 323100402.

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

It is a cyclic number.

It is not a de Polignac number, because 204001323 - 2¹ = 204001321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204001321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34000218 + ... + 34000223.

It is an arithmetic number, because the mean of its divisors is an integer number (68000442).

Almost surely, 2^204001323 is an apocalyptic number.

204001323 is a deficient number, since it is larger than the sum of its proper divisors (68000445).

204001323 is an equidigital number, since it uses as much as digits as its factorization.

204001323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68000444.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 204001323 is about 14282.9031712744. The cubic root of 204001323 is about 588.6778042657.

Adding to 204001323 its reverse (323100402), we get a palindrome (527101725).

The spelling of 204001323 in words is "two hundred four million, one thousand, three hundred twenty-three".