12304202321 has 2 divisors, whose sum is σ = 12304202322. Its totient is φ = 12304202320.

The previous prime is 12304202303. The next prime is 12304202327. The reversal of 12304202321 is 12320240321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7416654400 + 4887547921 = 86120^2 + 69911^2 .

It is a cyclic number.

It is not a de Polignac number, because 12304202321 - 2¹⁸ = 12303940177 is a prime.

It is a super-2 number, since 2×12304202321² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12304202293 and 12304202302.

It is not a weakly prime, because it can be changed into another prime (12304202327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152101160 + 6152101161.

It is an arithmetic number, because the mean of its divisors is an integer number (6152101161).

Almost surely, 2^12304202321 is an apocalyptic number.

It is an amenable number.

12304202321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12304202321 is an equidigital number, since it uses as much as digits as its factorization.

12304202321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12304202321 its reverse (12320240321), we get a palindrome (24624442642).

The spelling of 12304202321 in words is "twelve billion, three hundred four million, two hundred two thousand, three hundred twenty-one".