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Interprime | Utility function to check if a number is prime or not.
Corner cases.
This is checked so that we can skip middle five numbers in below loop.
Function to check if the given number is interprime or not.
Smallest Interprime is 4 So the number less than 4 can not be a Interprime.
Calculate first prime number < n.
Calculate first prime number > n.
check if next_prime and prev_prime have the same average.
Driver Code"
Solution in Python:

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Can you provide a code to interprime and the other steps required?
assistant
#Here is code to interprime and the other steps required.
 def isPrime ( n ) :
	if ( n <= 1 ) :
		return False
	if ( n <= 3 ) :
		return True
	if ( n % 2 == 0 or n % 3 == 0 ) :
		return False
	i = 5
	while ( i * i <= n ) :
		if ( n % i == 0 or n % ( i + 2 ) == 0 ) :
			return False
		i = i + 6
	return True
def isInterprime ( n ) :
	if ( n < 4 ) :
		return False
	prev_prime = n
	next_prime = n
	while ( isPrime ( prev_prime ) == 0 ) :
		prev_prime = prev_prime - 1
	while ( isPrime ( next_prime ) == 0 ) :
		next_prime = next_prime + 1
	if ( ( prev_prime + next_prime ) == 2 * n ) :
		return True
	else :
		return False
n = 9
if ( isInterprime ( n ) ) :
	print ( " YES " )
else :
	print ( " NO " )