441304020021 has 4 divisors (see below), whose sum is σ = 588405360032. Its totient is φ = 294202680012.

The previous prime is 441304020007. The next prime is 441304020037. The reversal of 441304020021 is 120020403144.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 441304020021 - 2¹³ = 441304011829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 441304020021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441304022021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73550670001 + ... + 73550670006.

It is an arithmetic number, because the mean of its divisors is an integer number (147101340008).

Almost surely, 2^441304020021 is an apocalyptic number.

It is an amenable number.

441304020021 is a deficient number, since it is larger than the sum of its proper divisors (147101340011).

441304020021 is a wasteful number, since it uses less digits than its factorization.

441304020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147101340010.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 441304020021 its reverse (120020403144), we get a palindrome (561324423165).

The spelling of 441304020021 in words is "four hundred forty-one billion, three hundred four million, twenty thousand, twenty-one".