321244340322313 has 4 divisors (see below), whose sum is σ = 332321731367940. Its totient is φ = 310166949276688.

The previous prime is 321244340322293. The next prime is 321244340322317. The reversal of 321244340322313 is 313223043442123.

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 100316189545209 + 220928150777104 = 10015797^2 + 14863652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321244340322313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321244340322317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5538695522770 + ... + 5538695522827.

It is an arithmetic number, because the mean of its divisors is an integer number (83080432841985).

Almost surely, 2^{321244340322313} is an apocalyptic number.

It is an amenable number.

321244340322313 is a deficient number, since it is larger than the sum of its proper divisors (11077391045627).

321244340322313 is a wasteful number, since it uses less digits than its factorization.

321244340322313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11077391045626.

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 321244340322313 its reverse (313223043442123), we get a palindrome (634467383764436).

The spelling of 321244340322313 in words is "three hundred twenty-one trillion, two hundred forty-four billion, three hundred forty million, three hundred twenty-two thousand, three hundred thirteen".