13331444321 has 8 divisors (see below), whose sum is σ = 14820067584. Its totient is φ = 11908982160.

The previous prime is 13331444317. The next prime is 13331444341. The reversal of 13331444321 is 12344413331.

It is a happy number.

13331444321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13331444321 - 2² = 13331444317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13331444341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16539851 + ... + 16540656.

It is an arithmetic number, because the mean of its divisors is an integer number (1852508448).

Almost surely, 2^13331444321 is an apocalyptic number.

It is an amenable number.

13331444321 is a deficient number, since it is larger than the sum of its proper divisors (1488623263).

13331444321 is a wasteful number, since it uses less digits than its factorization.

13331444321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33080551.

The product of its digits is 10368, while the sum is 29.

Adding to 13331444321 its reverse (12344413331), we get a palindrome (25675857652).

The spelling of 13331444321 in words is "thirteen billion, three hundred thirty-one million, four hundred forty-four thousand, three hundred twenty-one".