422002243123 has 4 divisors (see below), whose sum is σ = 436554044640. Its totient is φ = 407450441608.

The previous prime is 422002243111. The next prime is 422002243151. The reversal of 422002243123 is 321342200224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422002243123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422002243723) by changing a digit.

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, 7275900715 + ... + 7275900772.

It is an arithmetic number, because the mean of its divisors is an integer number (109138511160).

Almost surely, 2^422002243123 is an apocalyptic number.

422002243123 is a deficient number, since it is larger than the sum of its proper divisors (14551801517).

422002243123 is a wasteful number, since it uses less digits than its factorization.

422002243123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14551801516.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 422002243123 its reverse (321342200224), we get a palindrome (743344443347).

The spelling of 422002243123 in words is "four hundred twenty-two billion, two million, two hundred forty-three thousand, one hundred twenty-three".