444300111421 has 4 divisors (see below), whose sum is σ = 444820979932. Its totient is φ = 443779242912.

The previous prime is 444300111383. The next prime is 444300111457. The reversal of 444300111421 is 124111003444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 126390204196 + 317909907225 = 355514^2 + 563835^2 .

It is a cyclic number.

It is not a de Polignac number, because 444300111421 - 2¹¹ = 444300109373 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 (444300111461) 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, 260432976 + ... + 260434681.

It is an arithmetic number, because the mean of its divisors is an integer number (111205244983).

Almost surely, 2^444300111421 is an apocalyptic number.

It is an amenable number.

444300111421 is a deficient number, since it is larger than the sum of its proper divisors (520868511).

444300111421 is an equidigital number, since it uses as much as digits as its factorization.

444300111421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520868510.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 444300111421 its reverse (124111003444), we get a palindrome (568411114865).

The spelling of 444300111421 in words is "four hundred forty-four billion, three hundred million, one hundred eleven thousand, four hundred twenty-one".