204352321 has 2 divisors, whose sum is σ = 204352322. Its totient is φ = 204352320.

The previous prime is 204352303. The next prime is 204352333. The reversal of 204352321 is 123253402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197121600 + 7230721 = 14040^2 + 2689^2 .

It is a cyclic number.

It is not a de Polignac number, because 204352321 - 2⁵ = 204352289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204352292 and 204352301.

It is not a weakly prime, because it can be changed into another prime (204352021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102176160 + 102176161.

It is an arithmetic number, because the mean of its divisors is an integer number (102176161).

Almost surely, 2^204352321 is an apocalyptic number.

It is an amenable number.

204352321 is a deficient number, since it is larger than the sum of its proper divisors (1).

204352321 is an equidigital number, since it uses as much as digits as its factorization.

204352321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 204352321 is about 14295.1852383941. The cubic root of 204352321 is about 589.0152307395.

The spelling of 204352321 in words is "two hundred four million, three hundred fifty-two thousand, three hundred twenty-one".