423421043203 has 2 divisors, whose sum is σ = 423421043204. Its totient is φ = 423421043202.

The previous prime is 423421043189. The next prime is 423421043237. The reversal of 423421043203 is 302340124324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423421043203 - 2⁹ = 423421042691 is a prime.

It is not a weakly prime, because it can be changed into another prime (423421043263) 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, 211710521601 + 211710521602.

It is an arithmetic number, because the mean of its divisors is an integer number (211710521602).

Almost surely, 2^423421043203 is an apocalyptic number.

423421043203 is a deficient number, since it is larger than the sum of its proper divisors (1).

423421043203 is an equidigital number, since it uses as much as digits as its factorization.

423421043203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 423421043203 its reverse (302340124324), we get a palindrome (725761167527).

The spelling of 423421043203 in words is "four hundred twenty-three billion, four hundred twenty-one million, forty-three thousand, two hundred three".