42423122242 has 8 divisors (see below), whose sum is σ = 63661529232. Its totient is φ = 21202612500.

The previous prime is 42423122237. The next prime is 42423122297. The reversal of 42423122242 is 24222132424.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42423122242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4468384 + ... + 4477867.

It is an arithmetic number, because the mean of its divisors is an integer number (7957691154).

Almost surely, 2^42423122242 is an apocalyptic number.

42423122242 is a deficient number, since it is larger than the sum of its proper divisors (21238406990).

42423122242 is a wasteful number, since it uses less digits than its factorization.

42423122242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8948624.

The product of its digits is 12288, while the sum is 28.

Adding to 42423122242 its reverse (24222132424), we get a palindrome (66645254666).

The spelling of 42423122242 in words is "forty-two billion, four hundred twenty-three million, one hundred twenty-two thousand, two hundred forty-two".