42242312111 has 4 divisors (see below), whose sum is σ = 42314275752. Its totient is φ = 42170348472.

The previous prime is 42242312089. The next prime is 42242312117. The reversal of 42242312111 is 11121324224.

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

It is a cyclic number.

It is not a de Polignac number, because 42242312111 - 2¹⁰ = 42242311087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242312117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35980940 + ... + 35982113.

It is an arithmetic number, because the mean of its divisors is an integer number (10578568938).

Almost surely, 2^42242312111 is an apocalyptic number.

42242312111 is a deficient number, since it is larger than the sum of its proper divisors (71963641).

42242312111 is an equidigital number, since it uses as much as digits as its factorization.

42242312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71963640.

The product of its digits is 768, while the sum is 23.

Adding to 42242312111 its reverse (11121324224), we get a palindrome (53363636335).

The spelling of 42242312111 in words is "forty-two billion, two hundred forty-two million, three hundred twelve thousand, one hundred eleven".