11140243111 has 4 divisors (see below), whose sum is σ = 11499605824. Its totient is φ = 10780880400.

The previous prime is 11140243097. The next prime is 11140243117. The reversal of 11140243111 is 11134204111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11134204111 = 17 ⋅654953183.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11140243111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11140243117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179681310 + ... + 179681371.

It is an arithmetic number, because the mean of its divisors is an integer number (2874901456).

Almost surely, 2^11140243111 is an apocalyptic number.

11140243111 is a deficient number, since it is larger than the sum of its proper divisors (359362713).

11140243111 is an equidigital number, since it uses as much as digits as its factorization.

11140243111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359362712.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11140243111 its reverse (11134204111), we get a palindrome (22274447222).

The spelling of 11140243111 in words is "eleven billion, one hundred forty million, two hundred forty-three thousand, one hundred eleven".