Explanation:

1+6+2+1+3+3+1 = 17
5+3+4+2+4+5 = 23
The number is not divisible by 11 because the sum of alternative numbers is not equal to the sum of another alternative numbers.
rule of divisibility by 3 -
if sum of all digit of a number is divisible by 3 then number is divisible by 3.
1+5+6+3+2+4+1+2+3+4+3+5+1 = 40
The number not divisible by 3 because 40 is not divisible by 3.
The number neither divisible by 3 nor by 11.