Python Program to find the sum of digits of a number using recursion

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In this program, you will learn how to find the sum of digits of a number using recursion in Python.

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4321 => 4 + 3 + 2 + 1

1232 => 1 + 2 + 3 + 2

Example: How to find the sum of digits of a number using recursion in Python

s = 0


def sumofdigits(n):
    global s
    if n > 0:
        r = n % 10
        s = s + r
        sumofdigits(int(n / 10))
    return s


n = int(input("Enter a number:"))

num = sumofdigits(n)

print("Sum of digits:", num)

Output:

Enter a number:123
Sum of digits: 6