123424423 has 8 divisors (see below), whose sum is σ = 127592960. Its totient is φ = 119267640.

The previous prime is 123424373. The next prime is 123424429. The reversal of 123424423 is 324424321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123424423 - 2¹⁷ = 123293351 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 (123424429) 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 in 7 ways as a sum of consecutive naturals, for example, 21868 + ... + 26926.

It is an arithmetic number, because the mean of its divisors is an integer number (15949120).

Almost surely, 2^123424423 is an apocalyptic number.

123424423 is a deficient number, since it is larger than the sum of its proper divisors (4168537).

123424423 is an equidigital number, since it uses as much as digits as its factorization.

123424423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5877.

The product of its digits is 4608, while the sum is 25.

The square root of 123424423 is about 11109.6544950777. The cubic root of 123424423 is about 497.8903418710.

Adding to 123424423 its reverse (324424321), we get a palindrome (447848744).

The spelling of 123424423 in words is "one hundred twenty-three million, four hundred twenty-four thousand, four hundred twenty-three".