118109903 has 2 divisors, whose sum is σ = 118109904. Its totient is φ = 118109902.

The previous prime is 118109869. The next prime is 118109939. The reversal of 118109903 is 309901811.

It is a weak prime.

It is an emirp because it is prime and its reverse (309901811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118109903 - 2⁸ = 118109647 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118109903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118109983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59054951 + 59054952.

It is an arithmetic number, because the mean of its divisors is an integer number (59054952).

Almost surely, 2^118109903 is an apocalyptic number.

118109903 is a deficient number, since it is larger than the sum of its proper divisors (1).

118109903 is an equidigital number, since it uses as much as digits as its factorization.

118109903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 118109903 is about 10867.8380094663. The cubic root of 118109903 is about 490.6390426586.

The spelling of 118109903 in words is "one hundred eighteen million, one hundred nine thousand, nine hundred three".