423243004403 has 4 divisors (see below), whose sum is σ = 434682004560. Its totient is φ = 411804004248.

The previous prime is 423243004391. The next prime is 423243004447. The reversal of 423243004403 is 304400342324.

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 423243004403 - 2¹⁴ = 423242988019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423243004453) 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, 5719500023 + ... + 5719500096.

It is an arithmetic number, because the mean of its divisors is an integer number (108670501140).

Almost surely, 2^423243004403 is an apocalyptic number.

423243004403 is a deficient number, since it is larger than the sum of its proper divisors (11439000157).

423243004403 is a wasteful number, since it uses less digits than its factorization.

423243004403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11439000156.

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 423243004403 its reverse (304400342324), we get a palindrome (727643346727).

The spelling of 423243004403 in words is "four hundred twenty-three billion, two hundred forty-three million, four thousand, four hundred three".