**Across**

**A**: A down squared.

**E**: a palindrome.

**F**: this prime number equals A down divided by B down.

**G**: K across - F across.

**I**: a multiple of J down.

**K**: M down + L across.

**L**: the digit sum of A down.

**N**: a square number.

**O**: the sixth power of the digit sum of N down.

**Down**:

**A**: the reverse of a prime number.

**B**: subtract B down from A down and divide the result by B down. The final result equals N across.

**C**: a prime number.

**D**: the seventh power of the digit sum of N across.

**H**: J down + L across.

**J**: this palindrome is a multiple of F across.

**M**: N down + F across.

**N**: a multiple of L across.