11444444324321 has 16 divisors (see below), whose sum is σ = 12155179982400. Its totient is φ = 10737923028480.

The previous prime is 11444444324189. The next prime is 11444444324329. The reversal of 11444444324321 is 12342344444411.

It is a cyclic number.

It is not a de Polignac number, because 11444444324321 - 2³⁸ = 11169566417377 is a prime.

It is a super-2 number, since 2×11444444324321² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11444444324329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7640906 + ... + 9015116.

It is an arithmetic number, because the mean of its divisors is an integer number (759698748900).

Almost surely, 2^{11444444324321} is an apocalyptic number.

It is an amenable number.

11444444324321 is a deficient number, since it is larger than the sum of its proper divisors (710735658079).

11444444324321 is a wasteful number, since it uses less digits than its factorization.

11444444324321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375744.

The product of its digits is 589824, while the sum is 41.

Adding to 11444444324321 its reverse (12342344444411), we get a palindrome (23786788768732).

The spelling of 11444444324321 in words is "eleven trillion, four hundred forty-four billion, four hundred forty-four million, three hundred twenty-four thousand, three hundred twenty-one".