204443223013 has 2 divisors, whose sum is σ = 204443223014. Its totient is φ = 204443223012.

The previous prime is 204443223011. The next prime is 204443223043. The reversal of 204443223013 is 310322344402.

204443223013 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., 140503526244 + 63939696769 = 374838^2 + 252863^2 .

It is a cyclic number.

It is not a de Polignac number, because 204443223013 - 2¹ = 204443223011 is a prime.

Together with 204443223011, 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 (204443223011) 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, 102221611506 + 102221611507.

It is an arithmetic number, because the mean of its divisors is an integer number (102221611507).

Almost surely, 2^204443223013 is an apocalyptic number.

It is an amenable number.

204443223013 is a deficient number, since it is larger than the sum of its proper divisors (1).

204443223013 is an equidigital number, since it uses as much as digits as its factorization.

204443223013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 204443223013 its reverse (310322344402), we get a palindrome (514765567415).

The spelling of 204443223013 in words is "two hundred four billion, four hundred forty-three million, two hundred twenty-three thousand, thirteen".