12101725680491 has 2 divisors, whose sum is σ = 12101725680492. Its totient is φ = 12101725680490.

The previous prime is 12101725680479. The next prime is 12101725680503. The reversal of 12101725680491 is 19408652710121.

It is a balanced prime because it is at equal distance from previous prime (12101725680479) and next prime (12101725680503).

It is an emirp because it is prime and its reverse (19408652710121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12101725680491 - 2⁶ = 12101725680427 is a prime.

It is not a weakly prime, because it can be changed into another prime (12101725680791) 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, 6050862840245 + 6050862840246.

It is an arithmetic number, because the mean of its divisors is an integer number (6050862840246).

Almost surely, 2^{12101725680491} is an apocalyptic number.

12101725680491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101725680491 is an equidigital number, since it uses as much as digits as its factorization.

12101725680491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 47.

The spelling of 12101725680491 in words is "twelve trillion, one hundred one billion, seven hundred twenty-five million, six hundred eighty thousand, four hundred ninety-one".