204033322041421 has 2 divisors, whose sum is σ = 204033322041422. Its totient is φ = 204033322041420.

The previous prime is 204033322041389. The next prime is 204033322041467. The reversal of 204033322041421 is 124140223330402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153236199657321 + 50797122384100 = 12378861^2 + 7127210^2 .

It is a cyclic number.

It is not a de Polignac number, because 204033322041421 - 2⁵ = 204033322041389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204033322044421) 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 as a sum of consecutive naturals, namely, 102016661020710 + 102016661020711.

It is an arithmetic number, because the mean of its divisors is an integer number (102016661020711).

Almost surely, 2^{204033322041421} is an apocalyptic number.

It is an amenable number.

204033322041421 is a deficient number, since it is larger than the sum of its proper divisors (1).

204033322041421 is an equidigital number, since it uses as much as digits as its factorization.

204033322041421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 204033322041421 its reverse (124140223330402), we get a palindrome (328173545371823).

The spelling of 204033322041421 in words is "two hundred four trillion, thirty-three billion, three hundred twenty-two million, forty-one thousand, four hundred twenty-one".