12323219 has 2 divisors, whose sum is σ = 12323220. Its totient is φ = 12323218.

The previous prime is 12323197. The next prime is 12323221. The reversal of 12323219 is 91232321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12323219 is a prime.

It is a super-2 number, since 2×12323219² = 303723453043922, which contains 22 as substring.

Together with 12323221, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12323194 and 12323203.

It is not a weakly prime, because it can be changed into another prime (12323299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6161609 + 6161610.

It is an arithmetic number, because the mean of its divisors is an integer number (6161610).

Almost surely, 2^12323219 is an apocalyptic number.

12323219 is a deficient number, since it is larger than the sum of its proper divisors (1).

12323219 is an equidigital number, since it uses as much as digits as its factorization.

12323219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 12323219 is about 3510.4442738776. Note that the first 3 decimals coincide. The cubic root of 12323219 is about 230.9801835790.

The spelling of 12323219 in words is "twelve million, three hundred twenty-three thousand, two hundred nineteen".