12105319 has 2 divisors, whose sum is σ = 12105320. Its totient is φ = 12105318.

The previous prime is 12105307. The next prime is 12105341. The reversal of 12105319 is 91350121.

It is an a-pointer prime, because the next prime (12105341) can be obtained adding 12105319 to its sum of digits (22).

It is a weak prime.

It is an emirp because it is prime and its reverse (91350121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12105319 - 2¹¹ = 12103271 is a prime.

It is a super-2 number, since 2×12105319² = 293077496183522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12105319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12105349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052659 + 6052660.

It is an arithmetic number, because the mean of its divisors is an integer number (6052660).

Almost surely, 2^12105319 is an apocalyptic number.

12105319 is a deficient number, since it is larger than the sum of its proper divisors (1).

12105319 is an equidigital number, since it uses as much as digits as its factorization.

12105319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 12105319 is about 3479.2698946762. The cubic root of 12105319 is about 229.6106772160.

The spelling of 12105319 in words is "twelve million, one hundred five thousand, three hundred nineteen".