42111633721207 has 2 divisors, whose sum is σ = 42111633721208. Its totient is φ = 42111633721206.

The previous prime is 42111633721159. The next prime is 42111633721253. The reversal of 42111633721207 is 70212733611124.

42111633721207 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 42111633721207 - 2³⁵ = 42077273982839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42111633721207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42111633721307) 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, 21055816860603 + 21055816860604.

It is an arithmetic number, because the mean of its divisors is an integer number (21055816860604).

Almost surely, 2^{42111633721207} is an apocalyptic number.

42111633721207 is a deficient number, since it is larger than the sum of its proper divisors (1).

42111633721207 is an equidigital number, since it uses as much as digits as its factorization.

42111633721207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 42111633721207 in words is "forty-two trillion, one hundred eleven billion, six hundred thirty-three million, seven hundred twenty-one thousand, two hundred seven".