105103 has 4 divisors (see below), whose sum is σ = 106888. Its totient is φ = 103320.

The previous prime is 105097. The next prime is 105107. The reversal of 105103 is 301501.

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 105103 - 2⁵ = 105071 is a prime.

It is a super-2 number, since 2×105103² = 22093281218, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 105103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105107) 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, 801 + ... + 922.

It is an arithmetic number, because the mean of its divisors is an integer number (26722).

2¹⁰⁵¹⁰³ is an apocalyptic number.

105103 is a deficient number, since it is larger than the sum of its proper divisors (1785).

105103 is an equidigital number, since it uses as much as digits as its factorization.

105103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784.

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 105103 is about 324.1959284137. The cubic root of 105103 is about 47.1923608723.

Adding to 105103 its reverse (301501), we get a palindrome (406604).

The spelling of 105103 in words is "one hundred five thousand, one hundred three".