12304421231 has 2 divisors, whose sum is σ = 12304421232. Its totient is φ = 12304421230.

The previous prime is 12304421221. The next prime is 12304421243. The reversal of 12304421231 is 13212440321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12304421231 - 2⁶ = 12304421167 is a prime.

It is a super-2 number, since 2×12304421231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12304421197 and 12304421206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12304421201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152210615 + 6152210616.

It is an arithmetic number, because the mean of its divisors is an integer number (6152210616).

Almost surely, 2^12304421231 is an apocalyptic number.

12304421231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12304421231 is an equidigital number, since it uses as much as digits as its factorization.

12304421231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12304421231 its reverse (13212440321), we get a palindrome (25516861552).

The spelling of 12304421231 in words is "twelve billion, three hundred four million, four hundred twenty-one thousand, two hundred thirty-one".