2112803 has 16 divisors (see below), whose sum is σ = 2750976. Its totient is φ = 1573440.

The previous prime is 2112793. The next prime is 2112821. The reversal of 2112803 is 3082112.

It is not a de Polignac number, because 2112803 - 2¹⁰ = 2111779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1175 + ... + 2367.

It is an arithmetic number, because the mean of its divisors is an integer number (171936).

2^2112803 is an apocalyptic number.

2112803 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2112803 is a deficient number, since it is larger than the sum of its proper divisors (638173).

2112803 is a wasteful number, since it uses less digits than its factorization.

2112803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2112803 is about 1453.5484168063. The cubic root of 2112803 is about 128.3176315566.

Adding to 2112803 its reverse (3082112), we get a palindrome (5194915).

The spelling of 2112803 in words is "two million, one hundred twelve thousand, eight hundred three".