123423004240200 has 288 divisors, whose sum is σ = 473852909300160. Its totient is φ = 28202416704000.

The previous prime is 123423004240199. The next prime is 123423004240223. The reversal of 123423004240200 is 2042400324321.

123423004240200 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 2 + 30 + 0 + 424 + 0 + 200 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 40108887 + ... + 43076313.

Almost surely, 2^{123423004240200} is an apocalyptic number.

123423004240200 is a gapful number since it is divisible by the number (10) 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 123423004240200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236926454650080).

123423004240200 is an abundant number, since it is smaller than the sum of its proper divisors (350429905059960).

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

123423004240200 is a wasteful number, since it uses less digits than its factorization.

123423004240200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970757 (or 2970745 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 123423004240200 its reverse (2042400324321), we get a palindrome (125465404564521).

The spelling of 123423004240200 in words is "one hundred twenty-three trillion, four hundred twenty-three billion, four million, two hundred forty thousand, two hundred".