1317203 has 4 divisors (see below), whose sum is σ = 1325448. Its totient is φ = 1308960.

The previous prime is 1317193. The next prime is 1317223. The reversal of 1317203 is 3027131.

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 1317203 - 2¹⁶ = 1251667 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317223) 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, 3878 + ... + 4203.

It is an arithmetic number, because the mean of its divisors is an integer number (331362).

2^1317203 is an apocalyptic number.

1317203 is a deficient number, since it is larger than the sum of its proper divisors (8245).

1317203 is an equidigital number, since it uses as much as digits as its factorization.

1317203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8244.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 1317203 is about 1147.6946458009. The cubic root of 1317203 is about 109.6185964413.

The spelling of 1317203 in words is "one million, three hundred seventeen thousand, two hundred three".