Is 80136 divisible by 11?

Sum of the digits at odd places = 6 + 1 + 8 = 15

Sum of the digits at even places = 3 + 0 = 3

Difference of the two sums = 15 – 3 = 12,

which is neither 0 nor the multiple of 11.

Hence, 80136 is not divisible by 11.