12316443 has 16 divisors (see below), whose sum is σ = 16767360. Its totient is φ = 8040384.

The previous prime is 12316439. The next prime is 12316457. The reversal of 12316443 is 34461321.

It is not a de Polignac number, because 12316443 - 2² = 12316439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12316433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43380 + ... + 43662.

It is an arithmetic number, because the mean of its divisors is an integer number (1047960).

Almost surely, 2^12316443 is an apocalyptic number.

12316443 is a deficient number, since it is larger than the sum of its proper divisors (4450917).

12316443 is a wasteful number, since it uses less digits than its factorization.

12316443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538.

The product of its digits is 1728, while the sum is 24.

The square root of 12316443 is about 3509.4790211654. The cubic root of 12316443 is about 230.9378405116.

Adding to 12316443 its reverse (34461321), we get a palindrome (46777764).

The spelling of 12316443 in words is "twelve million, three hundred sixteen thousand, four hundred forty-three".