12243342243 has 16 divisors (see below), whose sum is σ = 17869291776. Its totient is φ = 7394876640.

The previous prime is 12243342239. The next prime is 12243342257. The reversal of 12243342243 is 34224334221.

12243342243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12243342243 - 2² = 12243342239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12243342243.

It is not an unprimeable number, because it can be changed into a prime (12243342263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623455 + ... + 642792.

It is an arithmetic number, because the mean of its divisors is an integer number (1116830736).

Almost surely, 2^12243342243 is an apocalyptic number.

12243342243 is a deficient number, since it is larger than the sum of its proper divisors (5625949533).

12243342243 is a wasteful number, since it uses less digits than its factorization.

12243342243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266554.

The product of its digits is 27648, while the sum is 30.

Adding to 12243342243 its reverse (34224334221), we get a palindrome (46467676464).

The spelling of 12243342243 in words is "twelve billion, two hundred forty-three million, three hundred forty-two thousand, two hundred forty-three".