204242401213 has 2 divisors, whose sum is σ = 204242401214. Its totient is φ = 204242401212.

The previous prime is 204242401211. The next prime is 204242401217. The reversal of 204242401213 is 312104242402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169326489049 + 34915912164 = 411493^2 + 186858^2 .

It is a cyclic number.

It is not a de Polignac number, because 204242401213 - 2¹ = 204242401211 is a prime.

Together with 204242401211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204242401211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102121200606 + 102121200607.

It is an arithmetic number, because the mean of its divisors is an integer number (102121200607).

Almost surely, 2^204242401213 is an apocalyptic number.

It is an amenable number.

204242401213 is a deficient number, since it is larger than the sum of its proper divisors (1).

204242401213 is an equidigital number, since it uses as much as digits as its factorization.

204242401213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 204242401213 its reverse (312104242402), we get a palindrome (516346643615).

The spelling of 204242401213 in words is "two hundred four billion, two hundred forty-two million, four hundred one thousand, two hundred thirteen".