12430321 has 2 divisors, whose sum is σ = 12430322. Its totient is φ = 12430320.

The previous prime is 12430307. The next prime is 12430331. The reversal of 12430321 is 12303421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12215025 + 215296 = 3495^2 + 464^2 .

It is a cyclic number.

It is not a de Polignac number, because 12430321 - 2⁷ = 12430193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12430295 and 12430304.

It is not a weakly prime, because it can be changed into another prime (12430331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215160 + 6215161.

It is an arithmetic number, because the mean of its divisors is an integer number (6215161).

Almost surely, 2^12430321 is an apocalyptic number.

It is an amenable number.

12430321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12430321 is an equidigital number, since it uses as much as digits as its factorization.

12430321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12430321 is about 3525.6660363682. Note that the first 3 decimals coincide. The cubic root of 12430321 is about 231.6474095639.

Adding to 12430321 its reverse (12303421), we get a palindrome (24733742).

The spelling of 12430321 in words is "twelve million, four hundred thirty thousand, three hundred twenty-one".