321440143344339 has 16 divisors (see below), whose sum is σ = 451144500625280. Its totient is φ = 203014629469440.

The previous prime is 321440143344283. The next prime is 321440143344373. The reversal of 321440143344339 is 933443341044123.

It is not a de Polignac number, because 321440143344339 - 2⁸ = 321440143344083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321440143354339) 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 15 ways as a sum of consecutive naturals, for example, 75709539 + ... + 79842435.

It is an arithmetic number, because the mean of its divisors is an integer number (28196531289080).

Almost surely, 2^{321440143344339} is an apocalyptic number.

321440143344339 is a deficient number, since it is larger than the sum of its proper divisors (129704357280941).

321440143344339 is a wasteful number, since it uses less digits than its factorization.

321440143344339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5497410.

The product of its (nonzero) digits is 4478976, while the sum is 48.

The spelling of 321440143344339 in words is "three hundred twenty-one trillion, four hundred forty billion, one hundred forty-three million, three hundred forty-four thousand, three hundred thirty-nine".