423543103 has 2 divisors, whose sum is σ = 423543104. Its totient is φ = 423543102.

The previous prime is 423543101. The next prime is 423543121. The reversal of 423543103 is 301345324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423543103 - 2¹ = 423543101 is a prime.

Together with 423543101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423543101) 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, 211771551 + 211771552.

It is an arithmetic number, because the mean of its divisors is an integer number (211771552).

Almost surely, 2^423543103 is an apocalyptic number.

423543103 is a deficient number, since it is larger than the sum of its proper divisors (1).

423543103 is an equidigital number, since it uses as much as digits as its factorization.

423543103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 423543103 is about 20580.1628516394. The cubic root of 423543103 is about 750.9872054785.

Adding to 423543103 its reverse (301345324), we get a palindrome (724888427).

The spelling of 423543103 in words is "four hundred twenty-three million, five hundred forty-three thousand, one hundred three".