2103003 has 20 divisors (see below), whose sum is σ = 3591280. Its totient is φ = 1201392.

The previous prime is 2102999. The next prime is 2103007. The reversal of 2103003 is 3003012.

It is a happy number.

2103003 is nontrivially palindromic in base 11.

It is an interprime number because it is at equal distance from previous prime (2102999) and next prime (2103007).

It is not a de Polignac number, because 2103003 - 2² = 2102999 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (2103007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1288 + ... + 2421.

It is an arithmetic number, because the mean of its divisors is an integer number (179564).

2^2103003 is an apocalyptic number.

2103003 is a deficient number, since it is larger than the sum of its proper divisors (1488277).

2103003 is an equidigital number, since it uses as much as digits as its factorization.

2103003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728 (or 3719 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 2103003 is about 1450.1734379032. The cubic root of 2103003 is about 128.1189283659.

Adding to 2103003 its reverse (3003012), we get a palindrome (5106015).

Subtracting 2103003 from its reverse (3003012), we obtain a palindrome (900009).

The spelling of 2103003 in words is "two million, one hundred three thousand, three".