13144303321 has 8 divisors (see below), whose sum is σ = 13940665704. Its totient is φ = 12350515200.

The previous prime is 13144303313. The next prime is 13144303369. The reversal of 13144303321 is 12330344131.

It can be written as a sum of positive squares in 4 ways, for example, as 9394455625 + 3749847696 = 96925^2 + 61236^2 .

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 13144303321 - 2³ = 13144303313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13144303121) 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 7 ways as a sum of consecutive naturals, for example, 633040 + ... + 653473.

It is an arithmetic number, because the mean of its divisors is an integer number (1742583213).

Almost surely, 2^13144303321 is an apocalyptic number.

It is an amenable number.

13144303321 is a deficient number, since it is larger than the sum of its proper divisors (796362383).

13144303321 is a wasteful number, since it uses less digits than its factorization.

13144303321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287131.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 13144303321 its reverse (12330344131), we get a palindrome (25474647452).

The spelling of 13144303321 in words is "thirteen billion, one hundred forty-four million, three hundred three thousand, three hundred twenty-one".