12181559683 has 2 divisors, whose sum is σ = 12181559684. Its totient is φ = 12181559682.

The previous prime is 12181559681. The next prime is 12181559693. The reversal of 12181559683 is 38695518121.

12181559683 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 is a cyclic number.

It is not a de Polignac number, because 12181559683 - 2¹ = 12181559681 is a prime.

Together with 12181559681, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12181559681) 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, 6090779841 + 6090779842.

It is an arithmetic number, because the mean of its divisors is an integer number (6090779842).

Almost surely, 2^12181559683 is an apocalyptic number.

12181559683 is a deficient number, since it is larger than the sum of its proper divisors (1).

12181559683 is an equidigital number, since it uses as much as digits as its factorization.

12181559683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 49.

The spelling of 12181559683 in words is "twelve billion, one hundred eighty-one million, five hundred fifty-nine thousand, six hundred eighty-three".