1112111103 has 4 divisors (see below), whose sum is σ = 1482814808. Its totient is φ = 741407400.

The previous prime is 1112111087. The next prime is 1112111123. The reversal of 1112111103 is 3011112111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1112111103 - 2⁴ = 1112111087 is a prime.

It is a super-2 number, since 2×1112111103² = 2473582210831753218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112111123) 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 3 ways as a sum of consecutive naturals, for example, 185351848 + ... + 185351853.

It is an arithmetic number, because the mean of its divisors is an integer number (370703702).

Almost surely, 2^1112111103 is an apocalyptic number.

1112111103 is a deficient number, since it is larger than the sum of its proper divisors (370703705).

1112111103 is an equidigital number, since it uses as much as digits as its factorization.

1112111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370703704.

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 1112111103 is about 33348.3298382393. The cubic root of 1112111103 is about 1036.0547962127.

Adding to 1112111103 its reverse (3011112111), we get a palindrome (4123223214).

The spelling of 1112111103 in words is "one billion, one hundred twelve million, one hundred eleven thousand, one hundred three".