12331021300 has 72 divisors (see below), whose sum is σ = 29211621656. Its totient is φ = 4490588160.

The previous prime is 12331021267. The next prime is 12331021301. The reversal of 12331021300 is 312013321.

It can be written as a sum of positive squares in 12 ways, for example, as 6044751504 + 6286269796 = 77748^2 + 79286^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331021301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29932 + ... + 159868.

Almost surely, 2^12331021300 is an apocalyptic number.

12331021300 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 12331021300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14605810828).

12331021300 is an abundant number, since it is smaller than the sum of its proper divisors (16880600356).

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

12331021300 is a wasteful number, since it uses less digits than its factorization.

12331021300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130037 (or 130030 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12331021300 its reverse (312013321), we get a palindrome (12643034621).

The spelling of 12331021300 in words is "twelve billion, three hundred thirty-one million, twenty-one thousand, three hundred".