321354802843 has 2 divisors, whose sum is σ = 321354802844. Its totient is φ = 321354802842.

The previous prime is 321354802837. The next prime is 321354802897. The reversal of 321354802843 is 348208453123.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321354802843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321354802843.

It is not a weakly prime, because it can be changed into another prime (321354802823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160677401421 + 160677401422.

It is an arithmetic number, because the mean of its divisors is an integer number (160677401422).

Almost surely, 2^321354802843 is an apocalyptic number.

321354802843 is a deficient number, since it is larger than the sum of its proper divisors (1).

321354802843 is an equidigital number, since it uses as much as digits as its factorization.

321354802843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 321354802843 in words is "three hundred twenty-one billion, three hundred fifty-four million, eight hundred two thousand, eight hundred forty-three".