320233030321 has 4 divisors (see below), whose sum is σ = 320235342372. Its totient is φ = 320230718272.

The previous prime is 320233030279. The next prime is 320233030387. The reversal of 320233030321 is 123030332023.

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 114135189921 + 206097840400 = 337839^2 + 453980^2 .

It is a cyclic number.

It is not a de Polignac number, because 320233030321 - 2¹⁷ = 320232899249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320233030292 and 320233030301.

It is not an unprimeable number, because it can be changed into a prime (320233030391) 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, 934060 + ... + 1230013.

It is an arithmetic number, because the mean of its divisors is an integer number (80058835593).

Almost surely, 2^320233030321 is an apocalyptic number.

It is an amenable number.

320233030321 is a deficient number, since it is larger than the sum of its proper divisors (2312051).

320233030321 is a wasteful number, since it uses less digits than its factorization.

320233030321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312050.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 320233030321 its reverse (123030332023), we get a palindrome (443263362344).

The spelling of 320233030321 in words is "three hundred twenty billion, two hundred thirty-three million, thirty thousand, three hundred twenty-one".