12112255243 has 12 divisors (see below), whose sum is σ = 13512188200. Its totient is φ = 10846788480.

The previous prime is 12112255237. The next prime is 12112255249. The reversal of 12112255243 is 34255221121.

It is a happy number.

12112255243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12112255237) and next prime (12112255249).

It is a de Polignac number, because none of the positive numbers 2^k-12112255243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112255249) 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 11 ways as a sum of consecutive naturals, for example, 738918 + ... + 755131.

Almost surely, 2^12112255243 is an apocalyptic number.

12112255243 is a deficient number, since it is larger than the sum of its proper divisors (1399932957).

12112255243 is a wasteful number, since it uses less digits than its factorization.

12112255243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494138 (or 1494127 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

Adding to 12112255243 its reverse (34255221121), we get a palindrome (46367476364).

The spelling of 12112255243 in words is "twelve billion, one hundred twelve million, two hundred fifty-five thousand, two hundred forty-three".