12431323 has 8 divisors (see below), whose sum is σ = 12808656. Its totient is φ = 12057600.

The previous prime is 12431317. The next prime is 12431327. The reversal of 12431323 is 32313421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12431323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12431323.

It is not an unprimeable number, because it can be changed into a prime (12431327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7128 + ... + 8698.

It is an arithmetic number, because the mean of its divisors is an integer number (1601082).

Almost surely, 2^12431323 is an apocalyptic number.

12431323 is a deficient number, since it is larger than the sum of its proper divisors (377333).

12431323 is a wasteful number, since it uses less digits than its factorization.

12431323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805.

The product of its digits is 432, while the sum is 19.

The square root of 12431323 is about 3525.8081343147. The cubic root of 12431323 is about 231.6536337118.

Adding to 12431323 its reverse (32313421), we get a palindrome (44744744).

The spelling of 12431323 in words is "twelve million, four hundred thirty-one thousand, three hundred twenty-three".