320322333321 has 16 divisors (see below), whose sum is σ = 474699064320. Its totient is φ = 213481865520.

The previous prime is 320322333311. The next prime is 320322333347. The reversal of 320322333321 is 123333223023.

320322333321 is a `hidden beast` number, since 3 + 2 + 0 + 3 + 2 + 2 + 333 + 321 = 666.

It is not a de Polignac number, because 320322333321 - 2⁷ = 320322333193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (320322333311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1754665 + ... + 1928598.

It is an arithmetic number, because the mean of its divisors is an integer number (29668691520).

Almost surely, 2^320322333321 is an apocalyptic number.

It is an amenable number.

320322333321 is a deficient number, since it is larger than the sum of its proper divisors (154376730999).

320322333321 is a wasteful number, since it uses less digits than its factorization.

320322333321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686493 (or 3686487 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 27.

Adding to 320322333321 its reverse (123333223023), we get a palindrome (443655556344).

The spelling of 320322333321 in words is "three hundred twenty billion, three hundred twenty-two million, three hundred thirty-three thousand, three hundred twenty-one".