123221200344 has 256 divisors, whose sum is σ = 353009664000. Its totient is φ = 35511436800.

The previous prime is 123221200343. The next prime is 123221200363. The reversal of 123221200344 is 443002122321.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123221200343) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 88077357 + ... + 88078755.

It is an arithmetic number, because the mean of its divisors is an integer number (1378944000).

Almost surely, 2^123221200344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123221200344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176504832000).

123221200344 is an abundant number, since it is smaller than the sum of its proper divisors (229788463656).

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

123221200344 is a wasteful number, since it uses less digits than its factorization.

123221200344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 1650 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 123221200344 its reverse (443002122321), we get a palindrome (566223322665).

The spelling of 123221200344 in words is "one hundred twenty-three billion, two hundred twenty-one million, two hundred thousand, three hundred forty-four".