12308487181 has 2 divisors, whose sum is σ = 12308487182. Its totient is φ = 12308487180.

The previous prime is 12308487179. The next prime is 12308487221. The reversal of 12308487181 is 18178480321.

12308487181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6870752100 + 5437735081 = 82890^2 + 73741^2 .

It is a cyclic number.

It is not a de Polignac number, because 12308487181 - 2¹ = 12308487179 is a prime.

It is a super-2 number, since 2×12308487181² (a number of 21 digits) contains 22 as substring.

Together with 12308487179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12308487161) by changing a digit.

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 as a sum of consecutive naturals, namely, 6154243590 + 6154243591.

It is an arithmetic number, because the mean of its divisors is an integer number (6154243591).

Almost surely, 2^12308487181 is an apocalyptic number.

It is an amenable number.

12308487181 is a deficient number, since it is larger than the sum of its proper divisors (1).

12308487181 is an equidigital number, since it uses as much as digits as its factorization.

12308487181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 43.

The spelling of 12308487181 in words is "twelve billion, three hundred eight million, four hundred eighty-seven thousand, one hundred eighty-one".