Identify Next Number in the Series.

The series is 13, 35, 57, 79, 9111, .....

Logic : The terms of the given series are numbers formed by joining together consecutive odd numbers in order. i.e., $1$ and$3, 3$ and $5, 5$ and$7, 7$ and $9, 9$ and$11$, etc. 

So, missing term= number formed by joining $11$ and $13 =1113$.