242234351591 has 2 divisors, whose sum is σ = 242234351592. Its totient is φ = 242234351590.

The previous prime is 242234351519. The next prime is 242234351599. The reversal of 242234351591 is 195153432242.

Together with previous prime (242234351519) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242234351591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242234351599) 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, 121117175795 + 121117175796.

It is an arithmetic number, because the mean of its divisors is an integer number (121117175796).

Almost surely, 2^242234351591 is an apocalyptic number.

242234351591 is a deficient number, since it is larger than the sum of its proper divisors (1).

242234351591 is an equidigital number, since it uses as much as digits as its factorization.

242234351591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

The spelling of 242234351591 in words is "two hundred forty-two billion, two hundred thirty-four million, three hundred fifty-one thousand, five hundred ninety-one".