12308243 has 12 divisors (see below), whose sum is σ = 13139280. Its totient is φ = 11524656.

The previous prime is 12308237. The next prime is 12308249. The reversal of 12308243 is 34280321.

It is an interprime number because it is at equal distance from previous prime (12308237) and next prime (12308249).

It is not a de Polignac number, because 12308243 - 2⁴ = 12308227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12308249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27818 + ... + 28256.

It is an arithmetic number, because the mean of its divisors is an integer number (1094940).

Almost surely, 2^12308243 is an apocalyptic number.

12308243 is a deficient number, since it is larger than the sum of its proper divisors (831037).

12308243 is an equidigital number, since it uses as much as digits as its factorization.

12308243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 12308243 is about 3508.3105620797. The cubic root of 12308243 is about 230.8865781273.

Adding to 12308243 its reverse (34280321), we get a palindrome (46588564).

The spelling of 12308243 in words is "twelve million, three hundred eight thousand, two hundred forty-three".