422820113 has 2 divisors, whose sum is σ = 422820114. Its totient is φ = 422820112.

The previous prime is 422820071. The next prime is 422820121. The reversal of 422820113 is 311028224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327718609 + 95101504 = 18103^2 + 9752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422820113 is a prime.

It is not a weakly prime, because it can be changed into another prime (422820133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211410056 + 211410057.

It is an arithmetic number, because the mean of its divisors is an integer number (211410057).

Almost surely, 2^422820113 is an apocalyptic number.

It is an amenable number.

422820113 is a deficient number, since it is larger than the sum of its proper divisors (1).

422820113 is an equidigital number, since it uses as much as digits as its factorization.

422820113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 422820113 is about 20562.5901335411. The cubic root of 422820113 is about 750.5596492494.

Adding to 422820113 its reverse (311028224), we get a palindrome (733848337).

The spelling of 422820113 in words is "four hundred twenty-two million, eight hundred twenty thousand, one hundred thirteen".