1312323331321 has 8 divisors (see below), whose sum is σ = 1313065563264. Its totient is φ = 1311581206320.

The previous prime is 1312323331313. The next prime is 1312323331357. The reversal of 1312323331321 is 1231333232131.

It is a happy number.

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 1312323331321 - 2³ = 1312323331313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312323331321.

It is not an unprimeable number, because it can be changed into a prime (1312323331391) 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, 42785731 + ... + 42816391.

It is an arithmetic number, because the mean of its divisors is an integer number (164133195408).

Almost surely, 2^{1312323331321} is an apocalyptic number.

It is an amenable number.

1312323331321 is a deficient number, since it is larger than the sum of its proper divisors (742231943).

1312323331321 is a wasteful number, since it uses less digits than its factorization.

1312323331321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53471.

The product of its digits is 5832, while the sum is 28.

Adding to 1312323331321 its reverse (1231333232131), we get a palindrome (2543656563452).

The spelling of 1312323331321 in words is "one trillion, three hundred twelve billion, three hundred twenty-three million, three hundred thirty-one thousand, three hundred twenty-one".