Problem 49778. Determine whether a number is a prime self number
Integers can be classified as generated numbers or self numbers. A generated number is one that can be expressed as the sum of another number and its digit sum. For example, 15 can be written as 12+(1+2); in other words, 15’s generator is 12. A self number cannot be expressed in this way.
Write a function to determine whether a number is a prime self number.
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