42242123207 has 2 divisors, whose sum is σ = 42242123208. Its totient is φ = 42242123206.

The previous prime is 42242123197. The next prime is 42242123227. The reversal of 42242123207 is 70232124224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42242123207 - 2⁴ = 42242123191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42242123207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42242123227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121061603 + 21121061604.

It is an arithmetic number, because the mean of its divisors is an integer number (21121061604).

Almost surely, 2^42242123207 is an apocalyptic number.

42242123207 is a deficient number, since it is larger than the sum of its proper divisors (1).

42242123207 is an equidigital number, since it uses as much as digits as its factorization.

42242123207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 29.

The spelling of 42242123207 in words is "forty-two billion, two hundred forty-two million, one hundred twenty-three thousand, two hundred seven".