12311520422424 has 32 divisors (see below), whose sum is σ = 32589318766320. Its totient is φ = 3862437779456.

The previous prime is 12311520422423. The next prime is 12311520422527. The reversal of 12311520422424 is 42422402511321.

It is a super-2 number, since 2×12311520422424² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311520422423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15087647169 + ... + 15087647984.

Almost surely, 2^{12311520422424} is an apocalyptic number.

It is an amenable number.

12311520422424 is an abundant number, since it is smaller than the sum of its proper divisors (20277798343896).

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

12311520422424 is a wasteful number, since it uses less digits than its factorization.

12311520422424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30175295179 (or 30175295175 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 12311520422424 its reverse (42422402511321), we get a palindrome (54733922933745).

The spelling of 12311520422424 in words is "twelve trillion, three hundred eleven billion, five hundred twenty million, four hundred twenty-two thousand, four hundred twenty-four".