204131311201 has 2 divisors, whose sum is σ = 204131311202. Its totient is φ = 204131311200.

The previous prime is 204131311159. The next prime is 204131311231. The reversal of 204131311201 is 102113131402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204101554176 + 29757025 = 451776^2 + 5455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204131311201 is a prime.

It is not a weakly prime, because it can be changed into another prime (204131311231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102065655600 + 102065655601.

It is an arithmetic number, because the mean of its divisors is an integer number (102065655601).

Almost surely, 2^204131311201 is an apocalyptic number.

It is an amenable number.

204131311201 is a deficient number, since it is larger than the sum of its proper divisors (1).

204131311201 is an equidigital number, since it uses as much as digits as its factorization.

204131311201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 204131311201 its reverse (102113131402), we get a palindrome (306244442603).

The spelling of 204131311201 in words is "two hundred four billion, one hundred thirty-one million, three hundred eleven thousand, two hundred one".