13331143321 has 12 divisors (see below), whose sum is σ = 13990327092. Its totient is φ = 12701782016.

The previous prime is 13331143289. The next prime is 13331143379. The reversal of 13331143321 is 12334113331.

It can be written as a sum of positive squares in 2 ways, for example, as 8329117696 + 5002025625 = 91264^2 + 70725^2 .

It is not a de Polignac number, because 13331143321 - 2⁵ = 13331143289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13331143921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86925 + ... + 184981.

It is an arithmetic number, because the mean of its divisors is an integer number (1165860591).

Almost surely, 2^13331143321 is an apocalyptic number.

It is an amenable number.

13331143321 is a deficient number, since it is larger than the sum of its proper divisors (659183771).

13331143321 is an equidigital number, since it uses as much as digits as its factorization.

13331143321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98360 (or 98337 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

Adding to 13331143321 its reverse (12334113331), we get a palindrome (25665256652).

The spelling of 13331143321 in words is "thirteen billion, three hundred thirty-one million, one hundred forty-three thousand, three hundred twenty-one".