318103 has 2 divisors, whose sum is σ = 318104. Its totient is φ = 318102.

The previous prime is 318077. The next prime is 318107. The reversal of 318103 is 301813.

It is a strong prime.

It is an emirp because it is prime and its reverse (301813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318103 - 2⁹ = 317591 is a prime.

It is an Ulam number.

318103 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159051 + 159052.

It is an arithmetic number, because the mean of its divisors is an integer number (159052).

2³¹⁸¹⁰³ is an apocalyptic number.

318103 is a deficient number, since it is larger than the sum of its proper divisors (1).

318103 is an equidigital number, since it uses as much as digits as its factorization.

318103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 318103 is about 564.0062056396. The cubic root of 318103 is about 68.2636105547.

Adding to 318103 its reverse (301813), we get a palindrome (619916).

Subtracting from 318103 its reverse (301813), we obtain a triangular number (16290 = T₁₈₀).

It can be divided in two parts, 31810 and 3, that added together give a palindrome (31813).

The spelling of 318103 in words is "three hundred eighteen thousand, one hundred three".