117315203 has 4 divisors (see below), whose sum is σ = 122415888. Its totient is φ = 112214520.

The previous prime is 117315199. The next prime is 117315221. The reversal of 117315203 is 302513711.

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 117315203 - 2² = 117315199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 5100661 = 117315203 / (1 + 1 + 7 + 3 + 1 + 5 + 2 + 0 + 3).

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (117315293) 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, 2550308 + ... + 2550353.

It is an arithmetic number, because the mean of its divisors is an integer number (30603972).

Almost surely, 2^117315203 is an apocalyptic number.

117315203 is a deficient number, since it is larger than the sum of its proper divisors (5100685).

117315203 is an equidigital number, since it uses as much as digits as its factorization.

117315203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100684.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 117315203 is about 10831.2142901893. The cubic root of 117315203 is about 489.5361471823.

Adding to 117315203 its reverse (302513711), we get a palindrome (419828914).

The spelling of 117315203 in words is "one hundred seventeen million, three hundred fifteen thousand, two hundred three".