42011105 has 4 divisors (see below), whose sum is σ = 50413332. Its totient is φ = 33608880.

The previous prime is 42011093. The next prime is 42011119. The reversal of 42011105 is 50111024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15673681 + 26337424 = 3959^2 + 5132^2 .

It is not a de Polignac number, because 42011105 - 2¹⁴ = 41994721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42011105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4201106 + ... + 4201115.

It is an arithmetic number, because the mean of its divisors is an integer number (12603333).

Almost surely, 2^42011105 is an apocalyptic number.

It is an amenable number.

42011105 is a deficient number, since it is larger than the sum of its proper divisors (8402227).

42011105 is an equidigital number, since it uses as much as digits as its factorization.

42011105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8402226.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 42011105 is about 6481.5974111325. The cubic root of 42011105 is about 347.6332977222.

Adding to 42011105 its reverse (50111024), we get a palindrome (92122129).

The spelling of 42011105 in words is "forty-two million, eleven thousand, one hundred five".