441251144021 has 4 divisors (see below), whose sum is σ = 441257413344. Its totient is φ = 441244874700.

The previous prime is 441251144017. The next prime is 441251144029. The reversal of 441251144021 is 120441152144.

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 a cyclic number.

It is not a de Polignac number, because 441251144021 - 2² = 441251144017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441251144029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3027875 + ... + 3170256.

It is an arithmetic number, because the mean of its divisors is an integer number (110314353336).

Almost surely, 2^441251144021 is an apocalyptic number.

It is an amenable number.

441251144021 is a deficient number, since it is larger than the sum of its proper divisors (6269323).

441251144021 is an equidigital number, since it uses as much as digits as its factorization.

441251144021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6269322.

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 441251144021 its reverse (120441152144), we get a palindrome (561692296165).

The spelling of 441251144021 in words is "four hundred forty-one billion, two hundred fifty-one million, one hundred forty-four thousand, twenty-one".