242012123191 has 2 divisors, whose sum is σ = 242012123192. Its totient is φ = 242012123190.

The previous prime is 242012123161. The next prime is 242012123207. The reversal of 242012123191 is 191321210242.

242012123191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242012123191 - 2⁵ = 242012123159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242012123161) 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, 121006061595 + 121006061596.

It is an arithmetic number, because the mean of its divisors is an integer number (121006061596).

Almost surely, 2^242012123191 is an apocalyptic number.

242012123191 is a deficient number, since it is larger than the sum of its proper divisors (1).

242012123191 is an equidigital number, since it uses as much as digits as its factorization.

242012123191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 242012123191 in words is "two hundred forty-two billion, twelve million, one hundred twenty-three thousand, one hundred ninety-one".