1323321231344 has 40 divisors (see below), whose sum is σ = 2946400355808. Its totient is φ = 564004304640.

The previous prime is 1323321231329. The next prime is 1323321231347. The reversal of 1323321231344 is 4431321233231.

It is a self number, because there is not a number n which added to its sum of digits gives 1323321231344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323321231347) 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, 32618867 + ... + 32659410.

Almost surely, 2^{1323321231344} is an apocalyptic number.

1323321231344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1323321231344 is an abundant number, since it is smaller than the sum of its proper divisors (1623079124464).

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

1323321231344 is a wasteful number, since it uses less digits than its factorization.

1323321231344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65278473 (or 65278467 counting only the distinct ones).

The product of its digits is 31104, while the sum is 32.

Adding to 1323321231344 its reverse (4431321233231), we get a palindrome (5754642464575).

The spelling of 1323321231344 in words is "one trillion, three hundred twenty-three billion, three hundred twenty-one million, two hundred thirty-one thousand, three hundred forty-four".