13321231441344 has 70 divisors (see below), whose sum is σ = 39488303171064. Its totient is φ = 4440410478720.

The previous prime is 13321231441319. The next prime is 13321231441379. The reversal of 13321231441344 is 44314413212331.

13321231441344 is a `hidden beast` number, since 1 + 3 + 3 + 2 + 1 + 231 + 4 + 413 + 4 + 4 = 666.

It is a super-2 number, since 2×13321231441344² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13321231441299 and 13321231441308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1284835812 + ... + 1284846179.

Almost surely, 2^{13321231441344} is an apocalyptic number.

It is an amenable number.

13321231441344 is an abundant number, since it is smaller than the sum of its proper divisors (26167071729720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13321231441344 is an equidigital number, since it uses as much as digits as its factorization.

13321231441344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569682015 (or 2569681996 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

Adding to 13321231441344 its reverse (44314413212331), we get a palindrome (57635644653675).

The spelling of 13321231441344 in words is "thirteen trillion, three hundred twenty-one billion, two hundred thirty-one million, four hundred forty-one thousand, three hundred forty-four".