42105250111 has 2 divisors, whose sum is σ = 42105250112. Its totient is φ = 42105250110.

The previous prime is 42105250097. The next prime is 42105250141. The reversal of 42105250111 is 11105250124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42105250111 - 2⁷ = 42105249983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42105250141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21052625055 + 21052625056.

It is an arithmetic number, because the mean of its divisors is an integer number (21052625056).

Almost surely, 2^42105250111 is an apocalyptic number.

42105250111 is a deficient number, since it is larger than the sum of its proper divisors (1).

42105250111 is an equidigital number, since it uses as much as digits as its factorization.

42105250111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 22.

The spelling of 42105250111 in words is "forty-two billion, one hundred five million, two hundred fifty thousand, one hundred eleven".