12012103131247 has 2 divisors, whose sum is σ = 12012103131248. Its totient is φ = 12012103131246.

The previous prime is 12012103131157. The next prime is 12012103131253. The reversal of 12012103131247 is 74213130121021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12012103131247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12012103131547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006051565623 + 6006051565624.

It is an arithmetic number, because the mean of its divisors is an integer number (6006051565624).

Almost surely, 2^{12012103131247} is an apocalyptic number.

12012103131247 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012103131247 is an equidigital number, since it uses as much as digits as its factorization.

12012103131247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

Adding to 12012103131247 its reverse (74213130121021), we get a palindrome (86225233252268).

The spelling of 12012103131247 in words is "twelve trillion, twelve billion, one hundred three million, one hundred thirty-one thousand, two hundred forty-seven".