320322341021 has 4 divisors (see below), whose sum is σ = 325103271552. Its totient is φ = 315541410492.

The previous prime is 320322340951. The next prime is 320322341029. The reversal of 320322341021 is 120143223023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120143223023 = 7879 ⋅15248537.

It is a cyclic number.

It is not a de Polignac number, because 320322341021 - 2³⁴ = 303142471837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320322341029) 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, 2390465165 + ... + 2390465298.

It is an arithmetic number, because the mean of its divisors is an integer number (81275817888).

Almost surely, 2^320322341021 is an apocalyptic number.

It is an amenable number.

320322341021 is a deficient number, since it is larger than the sum of its proper divisors (4780930531).

320322341021 is an equidigital number, since it uses as much as digits as its factorization.

320322341021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4780930530.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 320322341021 its reverse (120143223023), we get a palindrome (440465564044).

The spelling of 320322341021 in words is "three hundred twenty billion, three hundred twenty-two million, three hundred forty-one thousand, twenty-one".