321336650443 has 4 divisors (see below), whose sum is σ = 321344443728. Its totient is φ = 321328857160.

The previous prime is 321336650389. The next prime is 321336650483. The reversal of 321336650443 is 344056633123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344056633123 = 7 ⋅49150947589.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321336650443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321336650396 and 321336650405.

It is not an unprimeable number, because it can be changed into a prime (321336650483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3834463 + ... + 3917368.

It is an arithmetic number, because the mean of its divisors is an integer number (80336110932).

Almost surely, 2^321336650443 is an apocalyptic number.

321336650443 is a deficient number, since it is larger than the sum of its proper divisors (7793285).

321336650443 is an equidigital number, since it uses as much as digits as its factorization.

321336650443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7793284.

The product of its (nonzero) digits is 466560, while the sum is 40.

The spelling of 321336650443 in words is "three hundred twenty-one billion, three hundred thirty-six million, six hundred fifty thousand, four hundred forty-three".