4042122023042 has 4 divisors (see below), whose sum is σ = 6063183034566. Its totient is φ = 2021061011520.

The previous prime is 4042122023033. The next prime is 4042122023057. The reversal of 4042122023042 is 2403202212404.

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

It can be written as a sum of positive squares in only one way, i.e., 2868385964161 + 1173736058881 = 1693631^2 + 1083391^2 .

It is a super-2 number, since 2×4042122023042² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010530505759 + ... + 1010530505762.

Almost surely, 2^{4042122023042} is an apocalyptic number.

4042122023042 is a deficient number, since it is larger than the sum of its proper divisors (2021061011524).

4042122023042 is a wasteful number, since it uses less digits than its factorization.

4042122023042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021061011523.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 4042122023042 its reverse (2403202212404), we get a palindrome (6445324235446).

The spelling of 4042122023042 in words is "four trillion, forty-two billion, one hundred twenty-two million, twenty-three thousand, forty-two".