Study the following information carefully and answer the question given below. The first 15 consecutive odd numbers starting from 1 are written vertic...

Study the following information carefully and answer the question given below.
The first 15 consecutive odd numbers starting from 1 are written vertically. The letters of the word "MEAT" are arranged in alphabetical order corresponding to the numbers which are consecutive multiples of 3 (starting from 3). There are three letters placed between J and T. The odd number placed above J is the same as the odd number placed below K. K is placed corresponding to a prime number. I is placed corresponding to a number which is a multiple of 5. No two vowels are placed adjacent to each other. L is placed below I and corresponds to a prime number.
Question: How many letters according to the English alphabetical series are placed between the letters placed corresponding to numbers 13 and 21?