320123233321 has 4 divisors (see below), whose sum is σ = 320609005200. Its totient is φ = 319637461444.

The previous prime is 320123233291. The next prime is 320123233337. The reversal of 320123233321 is 123332321023.

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: 123332321023 = 337 ⋅365971279.

It is a cyclic number.

It is not a de Polignac number, because 320123233321 - 2²³ = 320114844713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320123233421) 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, 242884951 + ... + 242886268.

It is an arithmetic number, because the mean of its divisors is an integer number (80152251300).

Almost surely, 2^320123233321 is an apocalyptic number.

It is an amenable number.

320123233321 is a deficient number, since it is larger than the sum of its proper divisors (485771879).

320123233321 is an equidigital number, since it uses as much as digits as its factorization.

320123233321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485771878.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 320123233321 its reverse (123332321023), we get a palindrome (443455554344).

The spelling of 320123233321 in words is "three hundred twenty billion, one hundred twenty-three million, two hundred thirty-three thousand, three hundred twenty-one".