2112503 has 4 divisors (see below), whose sum is σ = 2124888. Its totient is φ = 2100120.

The previous prime is 2112499. The next prime is 2112511. The reversal of 2112503 is 3052112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2112503 - 2² = 2112499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112533) 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 3 ways as a sum of consecutive naturals, for example, 5933 + ... + 6278.

It is an arithmetic number, because the mean of its divisors is an integer number (531222).

2^2112503 is an apocalyptic number.

2112503 is a deficient number, since it is larger than the sum of its proper divisors (12385).

2112503 is a wasteful number, since it uses less digits than its factorization.

2112503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12384.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2112503 is about 1453.4452174059. The cubic root of 2112503 is about 128.3115579328.

Adding to 2112503 its reverse (3052112), we get a palindrome (5164615).

The spelling of 2112503 in words is "two million, one hundred twelve thousand, five hundred three".