423430010020 has 48 divisors (see below), whose sum is σ = 913428835200. Its totient is φ = 164780583680.

The previous prime is 423430009997. The next prime is 423430010021. The reversal of 423430010020 is 20010034324.

It is a self number, because there is not a number n which added to its sum of digits gives 423430010020.

It is not an unprimeable number, because it can be changed into a prime (423430010021) 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 15 ways as a sum of consecutive naturals, for example, 424810 + ... + 1013569.

It is an arithmetic number, because the mean of its divisors is an integer number (19029767400).

Almost surely, 2^423430010020 is an apocalyptic number.

It is an amenable number.

423430010020 is an abundant number, since it is smaller than the sum of its proper divisors (489998825180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423430010020 is a wasteful number, since it uses less digits than its factorization.

423430010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438788 (or 1438786 counting only the distinct ones).

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

Adding to 423430010020 its reverse (20010034324), we get a palindrome (443440044344).

The spelling of 423430010020 in words is "four hundred twenty-three billion, four hundred thirty million, ten thousand, twenty".