321322430243 has 2 divisors, whose sum is σ = 321322430244. Its totient is φ = 321322430242.

The previous prime is 321322430237. The next prime is 321322430267. The reversal of 321322430243 is 342034223123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321322430243 - 2³⁴ = 304142561059 is a prime.

It is not a weakly prime, because it can be changed into another prime (321322430543) 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 as a sum of consecutive naturals, namely, 160661215121 + 160661215122.

It is an arithmetic number, because the mean of its divisors is an integer number (160661215122).

Almost surely, 2^321322430243 is an apocalyptic number.

321322430243 is a deficient number, since it is larger than the sum of its proper divisors (1).

321322430243 is an equidigital number, since it uses as much as digits as its factorization.

321322430243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 321322430243 its reverse (342034223123), we get a palindrome (663356653366).

The spelling of 321322430243 in words is "three hundred twenty-one billion, three hundred twenty-two million, four hundred thirty thousand, two hundred forty-three".