What is the next number in the series - 11, 31, 71, 91, 32, 92, 13, ?

Question

What is the next number in the sequence -
1, 7, 10, 13, 19, 23, 28, 31, 32, 44, 49, 68, 70, 79, 82, 86, 91, 94, 97, 100, 103, 109, 129, 130, ?

Answer 1

73

---

11, 31, 71, 91, 32, 92, 13, 73
11-13-17-19-23-29-31-37
Reversal of the digits of the primes