12312021331230 has 32 divisors (see below), whose sum is σ = 29551329529344. Its totient is φ = 3282930317856.

The previous prime is 12312021331229. The next prime is 12312021331261. The reversal of 12312021331230 is 3213312021321.

It is a self number, because there is not a number n which added to its sum of digits gives 12312021331230.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16846882 + ... + 17562501.

It is an arithmetic number, because the mean of its divisors is an integer number (923479047792).

Almost surely, 2^{12312021331230} is an apocalyptic number.

12312021331230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12312021331230 is an abundant number, since it is smaller than the sum of its proper divisors (17239308198114).

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

12312021331230 is a wasteful number, since it uses less digits than its factorization.

12312021331230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34421320.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12312021331230 its reverse (3213312021321), we get a palindrome (15525333352551).

The spelling of 12312021331230 in words is "twelve trillion, three hundred twelve billion, twenty-one million, three hundred thirty-one thousand, two hundred thirty".