444030223121 has 4 divisors (see below), whose sum is σ = 450657539952. Its totient is φ = 437402906292.

The previous prime is 444030223097. The next prime is 444030223127. The reversal of 444030223121 is 121322030444.

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 a de Polignac number, because none of the positive numbers 2^k-444030223121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444030223127) 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, 3313658315 + ... + 3313658448.

It is an arithmetic number, because the mean of its divisors is an integer number (112664384988).

Almost surely, 2^444030223121 is an apocalyptic number.

It is an amenable number.

444030223121 is a deficient number, since it is larger than the sum of its proper divisors (6627316831).

444030223121 is an equidigital number, since it uses as much as digits as its factorization.

444030223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6627316830.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 444030223121 its reverse (121322030444), we get a palindrome (565352253565).

The spelling of 444030223121 in words is "four hundred forty-four billion, thirty million, two hundred twenty-three thousand, one hundred twenty-one".