204432342314021 has 2 divisors, whose sum is σ = 204432342314022. Its totient is φ = 204432342314020.

The previous prime is 204432342313931. The next prime is 204432342314063. The reversal of 204432342314021 is 120413243234402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137832624765796 + 66599717548225 = 11740214^2 + 8160865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204432342314021 is a prime.

It is a super-2 number, since 2×204432342314021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204432342364021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102216171157010 + 102216171157011.

It is an arithmetic number, because the mean of its divisors is an integer number (102216171157011).

Almost surely, 2^{204432342314021} is an apocalyptic number.

It is an amenable number.

204432342314021 is a deficient number, since it is larger than the sum of its proper divisors (1).

204432342314021 is an equidigital number, since it uses as much as digits as its factorization.

204432342314021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 204432342314021 its reverse (120413243234402), we get a palindrome (324845585548423).

The spelling of 204432342314021 in words is "two hundred four trillion, four hundred thirty-two billion, three hundred forty-two million, three hundred fourteen thousand, twenty-one".