204120324214013 has 2 divisors, whose sum is σ = 204120324214014. Its totient is φ = 204120324214012.

The previous prime is 204120324214007. The next prime is 204120324214043. The reversal of 204120324214013 is 310412423021402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127870456912324 + 76249867301689 = 11307982^2 + 8732117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204120324214013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204120324214003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102060162107006 + 102060162107007.

It is an arithmetic number, because the mean of its divisors is an integer number (102060162107007).

Almost surely, 2^{204120324214013} is an apocalyptic number.

It is an amenable number.

204120324214013 is a deficient number, since it is larger than the sum of its proper divisors (1).

204120324214013 is an equidigital number, since it uses as much as digits as its factorization.

204120324214013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 204120324214013 its reverse (310412423021402), we get a palindrome (514532747235415).

The spelling of 204120324214013 in words is "two hundred four trillion, one hundred twenty billion, three hundred twenty-four million, two hundred fourteen thousand, thirteen".