444002333121 has 6 divisors (see below), whose sum is σ = 641336703410. Its totient is φ = 296001555408.

The previous prime is 444002333119. The next prime is 444002333123. The reversal of 444002333121 is 121333200444.

444002333121 is a `hidden beast` number, since 4 + 4 + 400 + 233 + 3 + 1 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (444002333119) and next prime (444002333123).

It can be written as a sum of positive squares in only one way, i.e., 360648291600 + 83354041521 = 600540^2 + 288711^2 .

It is not a de Polignac number, because 444002333121 - 2¹ = 444002333119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444002333123) 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 in 5 ways as a sum of consecutive naturals, for example, 24666796276 + ... + 24666796293.

Almost surely, 2^444002333121 is an apocalyptic number.

It is an amenable number.

444002333121 is a deficient number, since it is larger than the sum of its proper divisors (197334370289).

444002333121 is a wasteful number, since it uses less digits than its factorization.

444002333121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49333592575 (or 49333592572 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 444002333121 its reverse (121333200444), we get a palindrome (565335533565).

The spelling of 444002333121 in words is "four hundred forty-four billion, two million, three hundred thirty-three thousand, one hundred twenty-one".