204122243313 has 6 divisors (see below), whose sum is σ = 294843240354. Its totient is φ = 136081495536.

The previous prime is 204122243267. The next prime is 204122243317. The reversal of 204122243313 is 313342221402.

204122243313 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 222 + 433 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 203876631729 + 245611584 = 451527^2 + 15672^2 .

It is not a de Polignac number, because 204122243313 - 2²⁰ = 204121194737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204122243317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11340124620 + ... + 11340124637.

It is an arithmetic number, because the mean of its divisors is an integer number (49140540059).

Almost surely, 2^204122243313 is an apocalyptic number.

It is an amenable number.

204122243313 is a deficient number, since it is larger than the sum of its proper divisors (90720997041).

204122243313 is a wasteful number, since it uses less digits than its factorization.

204122243313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22680249263 (or 22680249260 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 204122243313 its reverse (313342221402), we get a palindrome (517464464715).

The spelling of 204122243313 in words is "two hundred four billion, one hundred twenty-two million, two hundred forty-three thousand, three hundred thirteen".