12424178911 has 2 divisors, whose sum is σ = 12424178912. Its totient is φ = 12424178910.

The previous prime is 12424178891. The next prime is 12424178941. The reversal of 12424178911 is 11987142421.

It is a weak prime.

It is an emirp because it is prime and its reverse (11987142421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12424178911 - 2¹⁹ = 12423654623 is a prime.

It is a super-2 number, since 2×12424178911² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12424178941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6212089455 + 6212089456.

It is an arithmetic number, because the mean of its divisors is an integer number (6212089456).

Almost surely, 2^12424178911 is an apocalyptic number.

12424178911 is a deficient number, since it is larger than the sum of its proper divisors (1).

12424178911 is an equidigital number, since it uses as much as digits as its factorization.

12424178911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 40.

The spelling of 12424178911 in words is "twelve billion, four hundred twenty-four million, one hundred seventy-eight thousand, nine hundred eleven".