12113542243 has 4 divisors (see below), whose sum is σ = 13214773368. Its totient is φ = 11012311120.

The previous prime is 12113542229. The next prime is 12113542289. The reversal of 12113542243 is 34224531121.

12113542243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12113542243 - 2³³ = 3523607651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12113542223) 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 3 ways as a sum of consecutive naturals, for example, 550615546 + ... + 550615567.

It is an arithmetic number, because the mean of its divisors is an integer number (3303693342).

Almost surely, 2^12113542243 is an apocalyptic number.

12113542243 is a deficient number, since it is larger than the sum of its proper divisors (1101231125).

12113542243 is a wasteful number, since it uses less digits than its factorization.

12113542243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101231124.

The product of its digits is 5760, while the sum is 28.

The spelling of 12113542243 in words is "twelve billion, one hundred thirteen million, five hundred forty-two thousand, two hundred forty-three".