444120313421 has 2 divisors, whose sum is σ = 444120313422. Its totient is φ = 444120313420.

The previous prime is 444120313411. The next prime is 444120313453. The reversal of 444120313421 is 124313021444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230596842025 + 213523471396 = 480205^2 + 462086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444120313421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444120313411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222060156710 + 222060156711.

It is an arithmetic number, because the mean of its divisors is an integer number (222060156711).

Almost surely, 2^444120313421 is an apocalyptic number.

It is an amenable number.

444120313421 is a deficient number, since it is larger than the sum of its proper divisors (1).

444120313421 is an equidigital number, since it uses as much as digits as its factorization.

444120313421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 444120313421 its reverse (124313021444), we get a palindrome (568433334865).

The spelling of 444120313421 in words is "four hundred forty-four billion, one hundred twenty million, three hundred thirteen thousand, four hundred twenty-one".