11011112111 has 8 divisors (see below), whose sum is σ = 11069863200. Its totient is φ = 10952454240.

The previous prime is 11011112071. The next prime is 11011112113. The reversal of 11011112111 is 11121111011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11011112111 - 2¹⁴ = 11011095727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011112092 and 11011112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011112113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220310 + ... + 265628.

It is an arithmetic number, because the mean of its divisors is an integer number (1383732900).

Almost surely, 2^11011112111 is an apocalyptic number.

11011112111 is a deficient number, since it is larger than the sum of its proper divisors (58751089).

11011112111 is a wasteful number, since it uses less digits than its factorization.

11011112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46609.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11011112111 its reverse (11121111011), we get a palindrome (22132223122).

The spelling of 11011112111 in words is "eleven billion, eleven million, one hundred twelve thousand, one hundred eleven".