323303231321321 has 4 divisors (see below), whose sum is σ = 323309513863044. Its totient is φ = 323296948779600.

The previous prime is 323303231321311. The next prime is 323303231321377. The reversal of 323303231321321 is 123123132303323.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45491841415696 + 277811389905625 = 6744764^2 + 16667675^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323303231321321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (323303231321311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3141193670 + ... + 3141296591.

It is an arithmetic number, because the mean of its divisors is an integer number (80827378465761).

Almost surely, 2^{323303231321321} is an apocalyptic number.

It is an amenable number.

323303231321321 is a deficient number, since it is larger than the sum of its proper divisors (6282541723).

323303231321321 is an equidigital number, since it uses as much as digits as its factorization.

323303231321321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6282541722.

The product of its (nonzero) digits is 34992, while the sum is 32.

Adding to 323303231321321 its reverse (123123132303323), we get a palindrome (446426363624644).

The spelling of 323303231321321 in words is "three hundred twenty-three trillion, three hundred three billion, two hundred thirty-one million, three hundred twenty-one thousand, three hundred twenty-one".