42002320123 has 8 divisors (see below), whose sum is σ = 42040944000. Its totient is φ = 41963718720.

The previous prime is 42002320111. The next prime is 42002320187. The reversal of 42002320123 is 32102320024.

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

It is a cyclic number.

It is not a de Polignac number, because 42002320123 - 2¹³ = 42002311931 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 42002320123.

It is not an unprimeable number, because it can be changed into a prime (42002420123) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 7119711 + ... + 7125607.

It is an arithmetic number, because the mean of its divisors is an integer number (5255118000).

Almost surely, 2^42002320123 is an apocalyptic number.

42002320123 is a deficient number, since it is larger than the sum of its proper divisors (38623877).

42002320123 is a wasteful number, since it uses less digits than its factorization.

42002320123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11237.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 42002320123 its reverse (32102320024), we get a palindrome (74104640147).

Subtracting from 42002320123 its reverse (32102320024), we obtain a palindrome (9900000099).

The spelling of 42002320123 in words is "forty-two billion, two million, three hundred twenty thousand, one hundred twenty-three".