123424223 has 4 divisors (see below), whose sum is σ = 132918408. Its totient is φ = 113930040.

The previous prime is 123424211. The next prime is 123424241. The reversal of 123424223 is 322424321.

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 123424223 - 2⁸ = 123423967 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 (123429223) 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, 4747073 + ... + 4747098.

It is an arithmetic number, because the mean of its divisors is an integer number (33229602).

Almost surely, 2^123424223 is an apocalyptic number.

123424223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123424223 is a deficient number, since it is larger than the sum of its proper divisors (9494185).

123424223 is an equidigital number, since it uses as much as digits as its factorization.

123424223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9494184.

The product of its digits is 2304, while the sum is 23.

The square root of 123424223 is about 11109.6454938940. The cubic root of 123424223 is about 497.8900729395.

Adding to 123424223 its reverse (322424321), we get a palindrome (445848544).

The spelling of 123424223 in words is "one hundred twenty-three million, four hundred twenty-four thousand, two hundred twenty-three".