12424131211 has 4 divisors (see below), whose sum is σ = 12472474392. Its totient is φ = 12375788032.

The previous prime is 12424131163. The next prime is 12424131227. The reversal of 12424131211 is 11213142421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12424131211 is a prime.

It is a super-3 number, since 3×12424131211³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12424132211) 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, 24171205 + ... + 24171718.

It is an arithmetic number, because the mean of its divisors is an integer number (3118118598).

Almost surely, 2^12424131211 is an apocalyptic number.

12424131211 is a deficient number, since it is larger than the sum of its proper divisors (48343181).

12424131211 is an equidigital number, since it uses as much as digits as its factorization.

12424131211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48343180.

The product of its digits is 384, while the sum is 22.

Adding to 12424131211 its reverse (11213142421), we get a palindrome (23637273632).

The spelling of 12424131211 in words is "twelve billion, four hundred twenty-four million, one hundred thirty-one thousand, two hundred eleven".