11317973 has 4 divisors (see below), whose sum is σ = 11390220. Its totient is φ = 11245728.

The previous prime is 11317961. The next prime is 11317997. The reversal of 11317973 is 37971311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6041764 + 5276209 = 2458^2 + 2297^2 .

It is a cyclic number.

It is not a de Polignac number, because 11317973 - 2⁸ = 11317717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11337973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35888 + ... + 36201.

It is an arithmetic number, because the mean of its divisors is an integer number (2847555).

Almost surely, 2^11317973 is an apocalyptic number.

It is an amenable number.

11317973 is a deficient number, since it is larger than the sum of its proper divisors (72247).

11317973 is an equidigital number, since it uses as much as digits as its factorization.

11317973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72246.

The product of its digits is 3969, while the sum is 32.

The square root of 11317973 is about 3364.2195231584. The cubic root of 11317973 is about 224.5206122578.

The spelling of 11317973 in words is "eleven million, three hundred seventeen thousand, nine hundred seventy-three".