12243319 has 4 divisors (see below), whose sum is σ = 13356360. Its totient is φ = 11130280.

The previous prime is 12243317. The next prime is 12243323. The reversal of 12243319 is 91334221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91334221 = 11 ⋅8303111.

It is a cyclic number.

It is not a de Polignac number, because 12243319 - 2¹ = 12243317 is a prime.

It is a super-2 number, since 2×12243319² = 299797720271522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12243293 and 12243302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556504 + ... + 556525.

It is an arithmetic number, because the mean of its divisors is an integer number (3339090).

Almost surely, 2^12243319 is an apocalyptic number.

12243319 is a deficient number, since it is larger than the sum of its proper divisors (1113041).

12243319 is a wasteful number, since it uses less digits than its factorization.

12243319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113040.

The product of its digits is 1296, while the sum is 25.

The square root of 12243319 is about 3499.0454412597. The cubic root of 12243319 is about 230.4798990569.

The spelling of 12243319 in words is "twelve million, two hundred forty-three thousand, three hundred nineteen".