204122553313 has 4 divisors (see below), whose sum is σ = 233282918080. Its totient is φ = 174962188548.

The previous prime is 204122553163. The next prime is 204122553317. The reversal of 204122553313 is 313355221402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 204122553313 - 2¹⁷ = 204122422241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204122553317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14580182373 + ... + 14580182386.

It is an arithmetic number, because the mean of its divisors is an integer number (58320729520).

Almost surely, 2^204122553313 is an apocalyptic number.

It is an amenable number.

204122553313 is a deficient number, since it is larger than the sum of its proper divisors (29160364767).

204122553313 is an equidigital number, since it uses as much as digits as its factorization.

204122553313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29160364766.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 204122553313 its reverse (313355221402), we get a palindrome (517477774715).

The spelling of 204122553313 in words is "two hundred four billion, one hundred twenty-two million, five hundred fifty-three thousand, three hundred thirteen".