423205351 has 2 divisors, whose sum is σ = 423205352. Its totient is φ = 423205350.

The previous prime is 423205339. The next prime is 423205417. The reversal of 423205351 is 153502324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423205351 - 2⁵ = 423205319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423205301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211602675 + 211602676.

It is an arithmetic number, because the mean of its divisors is an integer number (211602676).

Almost surely, 2^423205351 is an apocalyptic number.

423205351 is a deficient number, since it is larger than the sum of its proper divisors (1).

423205351 is an equidigital number, since it uses as much as digits as its factorization.

423205351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 423205351 is about 20571.9554491060. The cubic root of 423205351 is about 750.7875289230.

Adding to 423205351 its reverse (153502324), we get a palindrome (576707675).

The spelling of 423205351 in words is "four hundred twenty-three million, two hundred five thousand, three hundred fifty-one".