11170240111 has 4 divisors (see below), whose sum is σ = 11170521432. Its totient is φ = 11169958792.

The previous prime is 11170240093. The next prime is 11170240117. The reversal of 11170240111 is 11104207111.

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 11170240111 - 2¹¹ = 11170238063 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 (11170240117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68896 + ... + 164581.

It is an arithmetic number, because the mean of its divisors is an integer number (2792630358).

Almost surely, 2^11170240111 is an apocalyptic number.

11170240111 is a deficient number, since it is larger than the sum of its proper divisors (281321).

11170240111 is an equidigital number, since it uses as much as digits as its factorization.

11170240111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281320.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 11170240111 its reverse (11104207111), we get a palindrome (22274447222).

The spelling of 11170240111 in words is "eleven billion, one hundred seventy million, two hundred forty thousand, one hundred eleven".