204504201271 has 2 divisors, whose sum is σ = 204504201272. Its totient is φ = 204504201270.

The previous prime is 204504201259. The next prime is 204504201301. The reversal of 204504201271 is 172102405402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204504201271 - 2⁹ = 204504200759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204504201221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102252100635 + 102252100636.

It is an arithmetic number, because the mean of its divisors is an integer number (102252100636).

Almost surely, 2^204504201271 is an apocalyptic number.

204504201271 is a deficient number, since it is larger than the sum of its proper divisors (1).

204504201271 is an equidigital number, since it uses as much as digits as its factorization.

204504201271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 28.

Adding to 204504201271 its reverse (172102405402), we get a palindrome (376606606673).

The spelling of 204504201271 in words is "two hundred four billion, five hundred four million, two hundred one thousand, two hundred seventy-one".