321203113323313 has 4 divisors (see below), whose sum is σ = 345911045117428. Its totient is φ = 296495181529200.

The previous prime is 321203113323299. The next prime is 321203113323349. The reversal of 321203113323313 is 313323311302123.

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 38339724680464 + 282863388642849 = 6191908^2 + 16818543^2 .

It is a cyclic number.

It is not a de Polignac number, because 321203113323313 - 2³³ = 321194523388721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321203113323383) 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, 12353965897038 + ... + 12353965897063.

It is an arithmetic number, because the mean of its divisors is an integer number (86477761279357).

Almost surely, 2^{321203113323313} is an apocalyptic number.

It is an amenable number.

321203113323313 is a deficient number, since it is larger than the sum of its proper divisors (24707931794115).

321203113323313 is a wasteful number, since it uses less digits than its factorization.

321203113323313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24707931794114.

The product of its (nonzero) digits is 17496, while the sum is 31.

Adding to 321203113323313 its reverse (313323311302123), we get a palindrome (634526424625436).

The spelling of 321203113323313 in words is "three hundred twenty-one trillion, two hundred three billion, one hundred thirteen million, three hundred twenty-three thousand, three hundred thirteen".