204442515113 has 2 divisors, whose sum is σ = 204442515114. Its totient is φ = 204442515112.

The previous prime is 204442515089. The next prime is 204442515119. The reversal of 204442515113 is 311515244402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104569450384 + 99873064729 = 323372^2 + 316027^2 .

It is a cyclic number.

It is not a de Polignac number, because 204442515113 - 2³⁴ = 187262645929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 204442515113.

It is not a weakly prime, because it can be changed into another prime (204442515119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102221257556 + 102221257557.

It is an arithmetic number, because the mean of its divisors is an integer number (102221257557).

Almost surely, 2^204442515113 is an apocalyptic number.

It is an amenable number.

204442515113 is a deficient number, since it is larger than the sum of its proper divisors (1).

204442515113 is an equidigital number, since it uses as much as digits as its factorization.

204442515113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 204442515113 its reverse (311515244402), we get a palindrome (515957759515).

The spelling of 204442515113 in words is "two hundred four billion, four hundred forty-two million, five hundred fifteen thousand, one hundred thirteen".