12120042424 has 64 divisors (see below), whose sum is σ = 27516499200. Its totient is φ = 4885691904.

The previous prime is 12120042419. The next prime is 12120042439. The reversal of 12120042424 is 42424002121.

12120042424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12120042395 and 12120042404.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2094367 + ... + 2100145.

It is an arithmetic number, because the mean of its divisors is an integer number (429945300).

Almost surely, 2^12120042424 is an apocalyptic number.

12120042424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12120042424 is an abundant number, since it is smaller than the sum of its proper divisors (15396456776).

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

12120042424 is a wasteful number, since it uses less digits than its factorization.

12120042424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8012 (or 8008 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 12120042424 its reverse (42424002121), we get a palindrome (54544044545).

The spelling of 12120042424 in words is "twelve billion, one hundred twenty million, forty-two thousand, four hundred twenty-four".