1100112111 has 20 divisors (see below), whose sum is σ = 1878146512. Its totient is φ = 628635168.

The previous prime is 1100112037. The next prime is 1100112121. The reversal of 1100112111 is 1112110011.

It is not a de Polignac number, because 1100112111 - 2³⁰ = 26370287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100112093 and 1100112102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100112121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 969550 + ... + 970683.

Almost surely, 2^1100112111 is an apocalyptic number.

1100112111 is a deficient number, since it is larger than the sum of its proper divisors (778034401).

1100112111 is an equidigital number, since it uses as much as digits as its factorization.

1100112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940252 (or 1940243 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

The square root of 1100112111 is about 33167.9379974095. The cubic root of 1100112111 is about 1032.3151839487.

Adding to 1100112111 its reverse (1112110011), we get a palindrome (2212222122).

The spelling of 1100112111 in words is "one billion, one hundred million, one hundred twelve thousand, one hundred eleven".