204244441444321 has 2 divisors, whose sum is σ = 204244441444322. Its totient is φ = 204244441444320.

The previous prime is 204244441444291. The next prime is 204244441444343. The reversal of 204244441444321 is 123444144442402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107667829968721 + 96576611475600 = 10376311^2 + 9827340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204244441444321 is a prime.

It is not a weakly prime, because it can be changed into another prime (204244441448321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102122220722160 + 102122220722161.

It is an arithmetic number, because the mean of its divisors is an integer number (102122220722161).

Almost surely, 2^{204244441444321} is an apocalyptic number.

It is an amenable number.

204244441444321 is a deficient number, since it is larger than the sum of its proper divisors (1).

204244441444321 is an equidigital number, since it uses as much as digits as its factorization.

204244441444321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1572864, while the sum is 43.

Adding to 204244441444321 its reverse (123444144442402), we get a palindrome (327688585886723).

The spelling of 204244441444321 in words is "two hundred four trillion, two hundred forty-four billion, four hundred forty-one million, four hundred forty-four thousand, three hundred twenty-one".