321321340344443 has 8 divisors (see below), whose sum is σ = 340390275634080. Its totient is φ = 302271036163200.

The previous prime is 321321340344383. The next prime is 321321340344469. The reversal of 321321340344443 is 344443043123123.

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 321321340344443 - 2¹⁸ = 321321340082299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321321340344443.

It is not an unprimeable number, because it can be changed into a prime (321321340344343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4657741583 + ... + 4657810568.

It is an arithmetic number, because the mean of its divisors is an integer number (42548784454260).

Almost surely, 2^{321321340344443} is an apocalyptic number.

321321340344443 is a deficient number, since it is larger than the sum of its proper divisors (19068935289637).

321321340344443 is a wasteful number, since it uses less digits than its factorization.

321321340344443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9315554197.

The product of its (nonzero) digits is 995328, while the sum is 41.

Adding to 321321340344443 its reverse (344443043123123), we get a palindrome (665764383467566).

The spelling of 321321340344443 in words is "three hundred twenty-one trillion, three hundred twenty-one billion, three hundred forty million, three hundred forty-four thousand, four hundred forty-three".