12230423321 has 2 divisors, whose sum is σ = 12230423322. Its totient is φ = 12230423320.

The previous prime is 12230423279. The next prime is 12230423333. The reversal of 12230423321 is 12332403221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9878173321 + 2352250000 = 99389^2 + 48500^2 .

It is a cyclic number.

It is not a de Polignac number, because 12230423321 - 2²² = 12226229017 is a prime.

It is a super-2 number, since 2×12230423321² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12230428321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115211660 + 6115211661.

It is an arithmetic number, because the mean of its divisors is an integer number (6115211661).

Almost surely, 2^12230423321 is an apocalyptic number.

It is an amenable number.

12230423321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12230423321 is an equidigital number, since it uses as much as digits as its factorization.

12230423321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12230423321 its reverse (12332403221), we get a palindrome (24562826542).

The spelling of 12230423321 in words is "twelve billion, two hundred thirty million, four hundred twenty-three thousand, three hundred twenty-one".