12321319 has 2 divisors, whose sum is σ = 12321320. Its totient is φ = 12321318.

The previous prime is 12321301. The next prime is 12321341. The reversal of 12321319 is 91312321.

It is an a-pointer prime, because the next prime (12321341) can be obtained adding 12321319 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12321319 is a prime.

It is a super-2 number, since 2×12321319² = 303629803799522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12321319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160659 + 6160660.

It is an arithmetic number, because the mean of its divisors is an integer number (6160660).

Almost surely, 2^12321319 is an apocalyptic number.

12321319 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321319 is an equidigital number, since it uses as much as digits as its factorization.

12321319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 22.

The square root of 12321319 is about 3510.1736424285. The cubic root of 12321319 is about 230.9683120892.

The spelling of 12321319 in words is "twelve million, three hundred twenty-one thousand, three hundred nineteen".