12321343 has 2 divisors, whose sum is σ = 12321344. Its totient is φ = 12321342.

The previous prime is 12321341. The next prime is 12321359. The reversal of 12321343 is 34312321.

12321343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12321343 - 2¹ = 12321341 is a prime.

Together with 12321341, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12321343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160671 + 6160672.

It is an arithmetic number, because the mean of its divisors is an integer number (6160672).

Almost surely, 2^12321343 is an apocalyptic number.

12321343 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321343 is an equidigital number, since it uses as much as digits as its factorization.

12321343 is an evil number, because the sum of its binary digits is even.

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

The square root of 12321343 is about 3510.1770610612. The cubic root of 12321343 is about 230.9684620525.

Adding to 12321343 its reverse (34312321), we get a palindrome (46633664).

It can be divided in two parts, 123213 and 43, that added together give a triangular number (123256 = T₄₉₆).

The spelling of 12321343 in words is "twelve million, three hundred twenty-one thousand, three hundred forty-three".