11118881111 has 16 divisors (see below), whose sum is σ = 12611034240. Its totient is φ = 9718276320.

The previous prime is 11118881107. The next prime is 11118881113.

11118881111 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 11118881111 - 2² = 11118881107 is a prime.

11118881111 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11118881113) 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 15 ways as a sum of consecutive naturals, for example, 503696 + ... + 525306.

It is an arithmetic number, because the mean of its divisors is an integer number (788189640).

Almost surely, 2^11118881111 is an apocalyptic number.

11118881111 is a deficient number, since it is larger than the sum of its proper divisors (1492153129).

11118881111 is a wasteful number, since it uses less digits than its factorization.

11118881111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23726.

The product of its digits is 512, while the sum is 32.

The spelling of 11118881111 in words is "eleven billion, one hundred eighteen million, eight hundred eighty-one thousand, one hundred eleven".