11128718243 has 4 divisors (see below), whose sum is σ = 11387525688. Its totient is φ = 10869910800.

The previous prime is 11128718231. The next prime is 11128718257. The reversal of 11128718243 is 34281782111.

11128718243 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 a de Polignac number, because none of the positive numbers 2^k-11128718243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11128718197 and 11128718206.

It is not an unprimeable number, because it can be changed into a prime (11128718203) 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, 129403658 + ... + 129403743.

It is an arithmetic number, because the mean of its divisors is an integer number (2846881422).

Almost surely, 2^11128718243 is an apocalyptic number.

11128718243 is a deficient number, since it is larger than the sum of its proper divisors (258807445).

11128718243 is an equidigital number, since it uses as much as digits as its factorization.

11128718243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258807444.

The product of its digits is 21504, while the sum is 38.

The spelling of 11128718243 in words is "eleven billion, one hundred twenty-eight million, seven hundred eighteen thousand, two hundred forty-three".