12324431 has 6 divisors (see below), whose sum is σ = 14336640. Its totient is φ = 10563756.

The previous prime is 12324419. The next prime is 12324437. The reversal of 12324431 is 13442321.

It is not a de Polignac number, because 12324431 - 2¹⁸ = 12062287 is a prime.

It is a super-2 number, since 2×12324431² = 303783198947522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12324437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125711 + ... + 125808.

It is an arithmetic number, because the mean of its divisors is an integer number (2389440).

Almost surely, 2^12324431 is an apocalyptic number.

12324431 is a deficient number, since it is larger than the sum of its proper divisors (2012209).

12324431 is an equidigital number, since it uses as much as digits as its factorization.

12324431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251533 (or 251526 counting only the distinct ones).

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

The square root of 12324431 is about 3510.6168973558. The cubic root of 12324431 is about 230.9877557024.

Adding to 12324431 its reverse (13442321), we get a palindrome (25766752).

The spelling of 12324431 in words is "twelve million, three hundred twenty-four thousand, four hundred thirty-one".