12140678509 has 2 divisors, whose sum is σ = 12140678510. Its totient is φ = 12140678508.

The previous prime is 12140678507. The next prime is 12140678513. The reversal of 12140678509 is 90587604121.

12140678509 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., 8510616009 + 3630062500 = 92253^2 + 60250^2 .

It is a cyclic number.

It is not a de Polignac number, because 12140678509 - 2¹ = 12140678507 is a prime.

Together with 12140678507, 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 (12140678507) 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, 6070339254 + 6070339255.

It is an arithmetic number, because the mean of its divisors is an integer number (6070339255).

Almost surely, 2^12140678509 is an apocalyptic number.

It is an amenable number.

12140678509 is a deficient number, since it is larger than the sum of its proper divisors (1).

12140678509 is an equidigital number, since it uses as much as digits as its factorization.

12140678509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 12140678509 in words is "twelve billion, one hundred forty million, six hundred seventy-eight thousand, five hundred nine".