2013103 has 4 divisors (see below), whose sum is σ = 2019888. Its totient is φ = 2006320.

The previous prime is 2013101. The next prime is 2013113. The reversal of 2013103 is 3013102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3013102 = 2 ⋅1506551.

It is a cyclic number.

It is not a de Polignac number, because 2013103 - 2¹ = 2013101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2013103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2926 + ... + 3547.

It is an arithmetic number, because the mean of its divisors is an integer number (504972).

2^2013103 is an apocalyptic number.

2013103 is a deficient number, since it is larger than the sum of its proper divisors (6785).

2013103 is an equidigital number, since it uses as much as digits as its factorization.

2013103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 2013103 is about 1418.8386095677. The cubic root of 2013103 is about 126.2666520531.

Adding to 2013103 its reverse (3013102), we get a palindrome (5026205).

Subtracting 2013103 from its reverse (3013102), we obtain a palindrome (999999).

It can be divided in two parts, 2013 and 103, that added together give a square (2116 = 46²).

The spelling of 2013103 in words is "two million, thirteen thousand, one hundred three".