200144430334021 has 2 divisors, whose sum is σ = 200144430334022. Its totient is φ = 200144430334020.

The previous prime is 200144430334003. The next prime is 200144430334033. The reversal of 200144430334021 is 120433034441002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124994412408100 + 75150017925921 = 11180090^2 + 8668911^2 .

It is a cyclic number.

It is not a de Polignac number, because 200144430334021 - 2⁷ = 200144430333893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200144430334061) 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, 100072215167010 + 100072215167011.

It is an arithmetic number, because the mean of its divisors is an integer number (100072215167011).

Almost surely, 2^{200144430334021} is an apocalyptic number.

It is an amenable number.

200144430334021 is a deficient number, since it is larger than the sum of its proper divisors (1).

200144430334021 is an equidigital number, since it uses as much as digits as its factorization.

200144430334021 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 200144430334021 its reverse (120433034441002), we get a palindrome (320577464775023).

The spelling of 200144430334021 in words is "two hundred trillion, one hundred forty-four billion, four hundred thirty million, three hundred thirty-four thousand, twenty-one".