123312424 has 32 divisors (see below), whose sum is σ = 247216320. Its totient is φ = 57459456.

The previous prime is 123312421. The next prime is 123312473. The reversal of 123312424 is 424213321.

It is a junction number, because it is equal to n+sod(n) for n = 123312395 and 123312404.

It is not an unprimeable number, because it can be changed into a prime (123312421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9607 + ... + 18409.

It is an arithmetic number, because the mean of its divisors is an integer number (7725510).

Almost surely, 2^123312424 is an apocalyptic number.

It is an amenable number.

123312424 is an abundant number, since it is smaller than the sum of its proper divisors (123903896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123312424 is a wasteful number, since it uses less digits than its factorization.

123312424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8929 (or 8925 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 123312424 is about 11104.6127352556. The cubic root of 123312424 is about 497.7396961165.

Adding to 123312424 its reverse (424213321), we get a palindrome (547525745).

The spelling of 123312424 in words is "one hundred twenty-three million, three hundred twelve thousand, four hundred twenty-four".