204311201 has 2 divisors, whose sum is σ = 204311202. Its totient is φ = 204311200.

The previous prime is 204311179. The next prime is 204311203. The reversal of 204311201 is 102113402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184960000 + 19351201 = 13600^2 + 4399^2 .

It is a cyclic number.

It is not a de Polignac number, because 204311201 - 2²² = 200116897 is a prime.

Together with 204311203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204311203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102155600 + 102155601.

It is an arithmetic number, because the mean of its divisors is an integer number (102155601).

Almost surely, 2^204311201 is an apocalyptic number.

It is an amenable number.

204311201 is a deficient number, since it is larger than the sum of its proper divisors (1).

204311201 is an equidigital number, since it uses as much as digits as its factorization.

204311201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 204311201 is about 14293.7469195449. The cubic root of 204311201 is about 588.9757206572.

Adding to 204311201 its reverse (102113402), we get a palindrome (306424603).

The spelling of 204311201 in words is "two hundred four million, three hundred eleven thousand, two hundred one".