12431443 has 2 divisors, whose sum is σ = 12431444. Its totient is φ = 12431442.

The previous prime is 12431413. The next prime is 12431479. The reversal of 12431443 is 34413421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12431443 - 2⁵ = 12431411 is a prime.

It is not a weakly prime, because it can be changed into another prime (12431413) 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 as a sum of consecutive naturals, namely, 6215721 + 6215722.

It is an arithmetic number, because the mean of its divisors is an integer number (6215722).

Almost surely, 2^12431443 is an apocalyptic number.

12431443 is a deficient number, since it is larger than the sum of its proper divisors (1).

12431443 is an equidigital number, since it uses as much as digits as its factorization.

12431443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 22.

The square root of 12431443 is about 3525.8251516489. The cubic root of 12431443 is about 231.6543790963.

Adding to 12431443 its reverse (34413421), we get a palindrome (46844864).

The spelling of 12431443 in words is "twelve million, four hundred thirty-one thousand, four hundred forty-three".