423005223423 has 4 divisors (see below), whose sum is σ = 564006964568. Its totient is φ = 282003482280.

The previous prime is 423005223367. The next prime is 423005223461. The reversal of 423005223423 is 324322500324.

It is a happy number.

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

It is not a de Polignac number, because 423005223423 - 2⁸ = 423005223167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423005223463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70500870568 + ... + 70500870573.

It is an arithmetic number, because the mean of its divisors is an integer number (141001741142).

Almost surely, 2^423005223423 is an apocalyptic number.

423005223423 is a deficient number, since it is larger than the sum of its proper divisors (141001741145).

423005223423 is a wasteful number, since it uses less digits than its factorization.

423005223423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141001741144.

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 423005223423 its reverse (324322500324), we get a palindrome (747327723747).

The spelling of 423005223423 in words is "four hundred twenty-three billion, five million, two hundred twenty-three thousand, four hundred twenty-three".