12312321020300 has 144 divisors (see below), whose sum is σ = 30820549358592. Its totient is φ = 4181867289600.

The previous prime is 12312321020281. The next prime is 12312321020309. The reversal of 12312321020300 is 302012321321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (12312321020309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158398445 + ... + 158476155.

It is an arithmetic number, because the mean of its divisors is an integer number (214031592768).

Almost surely, 2^{12312321020300} is an apocalyptic number.

12312321020300 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 12312321020300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15410274679296).

12312321020300 is an abundant number, since it is smaller than the sum of its proper divisors (18508228338292).

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

12312321020300 is a wasteful number, since it uses less digits than its factorization.

12312321020300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79848 (or 79841 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12312321020300 its reverse (302012321321), we get a palindrome (12614333341621).

The spelling of 12312321020300 in words is "twelve trillion, three hundred twelve billion, three hundred twenty-one million, twenty thousand, three hundred".