321431334342313 has 8 divisors (see below), whose sum is σ = 346161495947456. Its totient is φ = 296701840501200.

The previous prime is 321431334342281. The next prime is 321431334342383. The reversal of 321431334342313 is 313243433134123.

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 321431334342313 - 2⁵ = 321431334342281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321431334342383) 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, 165941043 + ... + 167866888.

It is an arithmetic number, because the mean of its divisors is an integer number (43270186993432).

Almost surely, 2^{321431334342313} is an apocalyptic number.

It is an amenable number.

321431334342313 is a deficient number, since it is larger than the sum of its proper divisors (24730161605143).

321431334342313 is a wasteful number, since it uses less digits than its factorization.

321431334342313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333882015.

The product of its digits is 559872, while the sum is 40.

Adding to 321431334342313 its reverse (313243433134123), we get a palindrome (634674767476436).

The spelling of 321431334342313 in words is "three hundred twenty-one trillion, four hundred thirty-one billion, three hundred thirty-four million, three hundred forty-two thousand, three hundred thirteen".