12320602321 has 4 divisors (see below), whose sum is σ = 13045343652. Its totient is φ = 11595860992.

The previous prime is 12320602319. The next prime is 12320602337.

12320602321 is nontrivially palindromic in base 10.

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 8858574400 + 3462027921 = 94120^2 + 58839^2 .

It is a cyclic number.

It is not a de Polignac number, because 12320602321 - 2¹ = 12320602319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12320602292 and 12320602301.

It is not an unprimeable number, because it can be changed into a prime (12320609321) 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, 362370640 + ... + 362370673.

It is an arithmetic number, because the mean of its divisors is an integer number (3261335913).

Almost surely, 2^12320602321 is an apocalyptic number.

It is an amenable number.

12320602321 is a deficient number, since it is larger than the sum of its proper divisors (724741331).

12320602321 is an equidigital number, since it uses as much as digits as its factorization.

12320602321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724741330.

The product of its (nonzero) digits is 864, while the sum is 22.

The spelling of 12320602321 in words is "twelve billion, three hundred twenty million, six hundred two thousand, three hundred twenty-one".