320033003321 has 4 divisors (see below), whose sum is σ = 320647270644. Its totient is φ = 319418736000.

The previous prime is 320033003237. The next prime is 320033003341. The reversal of 320033003321 is 123300330023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85738281721 + 234294721600 = 292811^2 + 484040^2 .

It is a cyclic number.

It is not a de Polignac number, because 320033003321 - 2¹⁰ = 320033002297 is a prime.

It is a super-2 number, since 2×320033003321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320033003293 and 320033003302.

It is not an unprimeable number, because it can be changed into a prime (320033003341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307132880 + ... + 307133921.

It is an arithmetic number, because the mean of its divisors is an integer number (80161817661).

Almost surely, 2^320033003321 is an apocalyptic number.

It is an amenable number.

320033003321 is a deficient number, since it is larger than the sum of its proper divisors (614267323).

320033003321 is an equidigital number, since it uses as much as digits as its factorization.

320033003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614267322.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 320033003321 its reverse (123300330023), we get a palindrome (443333333344).

The spelling of 320033003321 in words is "three hundred twenty billion, thirty-three million, three thousand, three hundred twenty-one".