2013003 has 6 divisors (see below), whose sum is σ = 2907684. Its totient is φ = 1341996.

The previous prime is 2013001. The next prime is 2013013. The reversal of 2013003 is 3003102.

It is a happy number.

It is not a de Polignac number, because 2013003 - 2¹ = 2013001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 223667 = 2013003 / (2 + 0 + 1 + 3 + 0 + 0 + 3).

It is not an unprimeable number, because it can be changed into a prime (2013001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111825 + ... + 111842.

It is an arithmetic number, because the mean of its divisors is an integer number (484614).

2^2013003 is an apocalyptic number.

2013003 is a deficient number, since it is larger than the sum of its proper divisors (894681).

2013003 is a wasteful number, since it uses less digits than its factorization.

2013003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223673 (or 223670 counting only the distinct ones).

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

The square root of 2013003 is about 1418.8033690403. The cubic root of 2013003 is about 126.2645612718.

Adding to 2013003 its product of nonzero digits (18), we get a triangular number (2013021 = T₂₀₀₆).

Adding to 2013003 its reverse (3003102), we get a palindrome (5016105).

Subtracting 2013003 from its reverse (3003102), we obtain a palindrome (990099).

The spelling of 2013003 in words is "two million, thirteen thousand, three".