123123220123200 has 168 divisors, whose sum is σ = 440669198029920. Its totient is φ = 29848053350400.

The previous prime is 123123220123199. The next prime is 123123220123207. The reversal of 123123220123200 is 2321022321321.

It is a super-2 number, since 2×123123220123200² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (123123220123207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1165886785 + ... + 1165992384.

Almost surely, 2^{123123220123200} is an apocalyptic number.

123123220123200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123123220123200 is an abundant number, since it is smaller than the sum of its proper divisors (317545977906720).

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

123123220123200 is a wasteful number, since it uses less digits than its factorization.

123123220123200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331879205 (or 2331879190 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 123123220123200 its reverse (2321022321321), we get a palindrome (125444242444521).

The spelling of 123123220123200 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, two hundred twenty million, one hundred twenty-three thousand, two hundred".