118003 has 4 divisors (see below), whose sum is σ = 118800. Its totient is φ = 117208.

The previous prime is 117991. The next prime is 118033. The reversal of 118003 is 300811.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118003 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (118033) by changing a digit.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103 + ... + 496.

It is an arithmetic number, because the mean of its divisors is an integer number (29700).

2¹¹⁸⁰⁰³ is an apocalyptic number.

118003 is a deficient number, since it is larger than the sum of its proper divisors (797).

118003 is an equidigital number, since it uses as much as digits as its factorization.

118003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 118003 is about 343.5156473874. The cubic root of 118003 is about 49.0490969785.

Adding to 118003 its reverse (300811), we get a palindrome (418814).

The spelling of 118003 in words is "one hundred eighteen thousand, three".