123231200 has 72 divisors (see below), whose sum is σ = 310605120. Its totient is φ = 47692800.

The previous prime is 123231191. The next prime is 123231203. The reversal of 123231200 is 2132321.

It is a happy number.

It is a super-3 number, since 3×123231200³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22316 + ... + 27284.

It is an arithmetic number, because the mean of its divisors is an integer number (4313960).

Almost surely, 2^123231200 is an apocalyptic number.

123231200 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 123231200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155302560).

123231200 is an abundant number, since it is smaller than the sum of its proper divisors (187373920).

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

123231200 is a wasteful number, since it uses less digits than its factorization.

123231200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5020 (or 5007 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 123231200 is about 11100.9549138802. The cubic root of 123231200 is about 497.6303876150.

Adding to 123231200 its reverse (2132321), we get a palindrome (125363521).

The spelling of 123231200 in words is "one hundred twenty-three million, two hundred thirty-one thousand, two hundred".