1423043423 has 4 divisors (see below), whose sum is σ = 1432594200. Its totient is φ = 1413492648.

The previous prime is 1423043417. The next prime is 1423043431. The reversal of 1423043423 is 3243403241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1423043423 - 2⁶ = 1423043359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423043392 and 1423043401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423043443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4775165 + ... + 4775462.

It is an arithmetic number, because the mean of its divisors is an integer number (358148550).

Almost surely, 2^1423043423 is an apocalyptic number.

1423043423 is a deficient number, since it is larger than the sum of its proper divisors (9550777).

1423043423 is an equidigital number, since it uses as much as digits as its factorization.

1423043423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9550776.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 1423043423 is about 37723.2477790553. The cubic root of 1423043423 is about 1124.7932915359.

Adding to 1423043423 its reverse (3243403241), we get a palindrome (4666446664).

The spelling of 1423043423 in words is "one billion, four hundred twenty-three million, forty-three thousand, four hundred twenty-three".