1112100111 has 20 divisors (see below), whose sum is σ = 1663878744. Its totient is φ = 740242800.

The previous prime is 1112100109. The next prime is 1112100127. The reversal of 1112100111 is 1110012111.

It is not a de Polignac number, because 1112100111 - 2¹ = 1112100109 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 1112100093 and 1112100102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112100181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43156 + ... + 63926.

Almost surely, 2^1112100111 is an apocalyptic number.

1112100111 is a deficient number, since it is larger than the sum of its proper divisors (551778633).

1112100111 is an equidigital number, since it uses as much as digits as its factorization.

1112100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21444 (or 21435 counting only the distinct ones).

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

The square root of 1112100111 is about 33348.1650319774. The cubic root of 1112100111 is about 1036.0513827792.

Adding to 1112100111 its reverse (1110012111), we get a palindrome (2222112222).

The spelling of 1112100111 in words is "one billion, one hundred twelve million, one hundred thousand, one hundred eleven".