423205051 has 2 divisors, whose sum is σ = 423205052. Its totient is φ = 423205050.

The previous prime is 423205019. The next prime is 423205073. The reversal of 423205051 is 150502324.

It is an a-pointer prime, because the next prime (423205073) can be obtained adding 423205051 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423205051 - 2⁵ = 423205019 is a prime.

It is not a weakly prime, because it can be changed into another prime (423205151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211602525 + 211602526.

It is an arithmetic number, because the mean of its divisors is an integer number (211602526).

Almost surely, 2^423205051 is an apocalyptic number.

423205051 is a deficient number, since it is larger than the sum of its proper divisors (1).

423205051 is an equidigital number, since it uses as much as digits as its factorization.

423205051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 423205051 is about 20571.9481576247. The cubic root of 423205051 is about 750.7873515179.

Adding to 423205051 its reverse (150502324), we get a palindrome (573707375).

The spelling of 423205051 in words is "four hundred twenty-three million, two hundred five thousand, fifty-one".