12142140487 has 2 divisors, whose sum is σ = 12142140488. Its totient is φ = 12142140486.

The previous prime is 12142140431. The next prime is 12142140511. The reversal of 12142140487 is 78404124121.

It is a strong prime.

It is an emirp because it is prime and its reverse (78404124121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12142140487 - 2⁷ = 12142140359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12142140407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071070243 + 6071070244.

It is an arithmetic number, because the mean of its divisors is an integer number (6071070244).

Almost surely, 2^12142140487 is an apocalyptic number.

12142140487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12142140487 is an equidigital number, since it uses as much as digits as its factorization.

12142140487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14336, while the sum is 34.

The spelling of 12142140487 in words is "twelve billion, one hundred forty-two million, one hundred forty thousand, four hundred eighty-seven".