204551332313 has 2 divisors, whose sum is σ = 204551332314. Its totient is φ = 204551332312.

The previous prime is 204551332303. The next prime is 204551332327. The reversal of 204551332313 is 313233155402.

204551332313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134243097664 + 70308234649 = 366392^2 + 265157^2 .

It is a cyclic number.

It is not a de Polignac number, because 204551332313 - 2²² = 204547138009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204551332313.

It is not a weakly prime, because it can be changed into another prime (204551332303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102275666156 + 102275666157.

It is an arithmetic number, because the mean of its divisors is an integer number (102275666157).

Almost surely, 2^204551332313 is an apocalyptic number.

It is an amenable number.

204551332313 is a deficient number, since it is larger than the sum of its proper divisors (1).

204551332313 is an equidigital number, since it uses as much as digits as its factorization.

204551332313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 204551332313 its reverse (313233155402), we get a palindrome (517784487715).

The spelling of 204551332313 in words is "two hundred four billion, five hundred fifty-one million, three hundred thirty-two thousand, three hundred thirteen".