42020112423 has 16 divisors (see below), whose sum is σ = 59333091840. Its totient is φ = 26360858496.

The previous prime is 42020112401. The next prime is 42020112437. The reversal of 42020112423 is 32421102024.

It is not a de Polignac number, because 42020112423 - 2³⁰ = 40946370599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42020112423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42020117423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227236 + ... + 368342.

It is an arithmetic number, because the mean of its divisors is an integer number (3708318240).

Almost surely, 2^42020112423 is an apocalyptic number.

42020112423 is a deficient number, since it is larger than the sum of its proper divisors (17312979417).

42020112423 is a wasteful number, since it uses less digits than its factorization.

42020112423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146966.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 42020112423 its reverse (32421102024), we get a palindrome (74441214447).

The spelling of 42020112423 in words is "forty-two billion, twenty million, one hundred twelve thousand, four hundred twenty-three".