441313021 has 2 divisors, whose sum is σ = 441313022. Its totient is φ = 441313020.

The previous prime is 441313001. The next prime is 441313051. The reversal of 441313021 is 120313144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 381420900 + 59892121 = 19530^2 + 7739^2 .

It is a cyclic number.

It is not a de Polignac number, because 441313021 - 2²³ = 432924413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 441313021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (441313001) 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, 220656510 + 220656511.

It is an arithmetic number, because the mean of its divisors is an integer number (220656511).

Almost surely, 2^441313021 is an apocalyptic number.

It is an amenable number.

441313021 is a deficient number, since it is larger than the sum of its proper divisors (1).

441313021 is an equidigital number, since it uses as much as digits as its factorization.

441313021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 441313021 is about 21007.4515589112. The cubic root of 441313021 is about 761.3463099864.

Adding to 441313021 its reverse (120313144), we get a palindrome (561626165).

The spelling of 441313021 in words is "four hundred forty-one million, three hundred thirteen thousand, twenty-one".