11112180887 has 4 divisors (see below), whose sum is σ = 11156452776. Its totient is φ = 11067909000.

The previous prime is 11112180869. The next prime is 11112180889. The reversal of 11112180887 is 78808121111.

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 11112180887 - 2⁶ = 11112180823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11112180887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112180889) 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, 22135568 + ... + 22136069.

It is an arithmetic number, because the mean of its divisors is an integer number (2789113194).

Almost surely, 2^11112180887 is an apocalyptic number.

11112180887 is a deficient number, since it is larger than the sum of its proper divisors (44271889).

11112180887 is an equidigital number, since it uses as much as digits as its factorization.

11112180887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44271888.

The product of its (nonzero) digits is 7168, while the sum is 38.

The spelling of 11112180887 in words is "eleven billion, one hundred twelve million, one hundred eighty thousand, eight hundred eighty-seven".