2102803 has 4 divisors (see below), whose sum is σ = 2126520. Its totient is φ = 2079088.

The previous prime is 2102801. The next prime is 2102809. The reversal of 2102803 is 3082012.

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 2102803 - 2¹ = 2102801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11725 + ... + 11902.

It is an arithmetic number, because the mean of its divisors is an integer number (531630).

2^2102803 is an apocalyptic number.

2102803 is a deficient number, since it is larger than the sum of its proper divisors (23717).

2102803 is an equidigital number, since it uses as much as digits as its factorization.

2102803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23716.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2102803 is about 1450.1044789945. The cubic root of 2102803 is about 128.1148667774.

Adding to 2102803 its reverse (3082012), we get a palindrome (5184815).

The spelling of 2102803 in words is "two million, one hundred two thousand, eight hundred three".