423123123200 has 132 divisors (see below), whose sum is σ = 1054906629720. Its totient is φ = 168269168640.

The previous prime is 423123123187. The next prime is 423123123209. The reversal of 423123123200 is 2321321324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423123123209) 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 11 ways as a sum of consecutive naturals, for example, 4381031 + ... + 4476569.

Almost surely, 2^423123123200 is an apocalyptic number.

423123123200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423123123200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (527453314860).

423123123200 is an abundant number, since it is smaller than the sum of its proper divisors (631783506520).

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

423123123200 is a wasteful number, since it uses less digits than its factorization.

423123123200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95742 (or 95719 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 423123123200 its reverse (2321321324), we get a palindrome (425444444524).

The spelling of 423123123200 in words is "four hundred twenty-three billion, one hundred twenty-three million, one hundred twenty-three thousand, two hundred".