12424131228 has 12 divisors (see below), whose sum is σ = 28989639560. Its totient is φ = 4141377072.

The previous prime is 12424131227. The next prime is 12424131253. The reversal of 12424131228 is 82213142421.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×12424131228³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12424131195 and 12424131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12424131227) 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, 517672123 + ... + 517672146.

Almost surely, 2^12424131228 is an apocalyptic number.

It is an amenable number.

12424131228 is an abundant number, since it is smaller than the sum of its proper divisors (16565508332).

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

12424131228 is a wasteful number, since it uses less digits than its factorization.

12424131228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035344276 (or 1035344274 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

Adding to 12424131228 its reverse (82213142421), we get a palindrome (94637273649).

The spelling of 12424131228 in words is "twelve billion, four hundred twenty-four million, one hundred thirty-one thousand, two hundred twenty-eight".