12312310320012 has 48 divisors (see below), whose sum is σ = 31467567972960. Its totient is φ = 3729489533952.

The previous prime is 12312310320001. The next prime is 12312310320073. The reversal of 12312310320012 is 21002301321321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1040588263 + ... + 1040600094.

It is an arithmetic number, because the mean of its divisors is an integer number (655574332770).

Almost surely, 2^{12312310320012} is an apocalyptic number.

12312310320012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12312310320012 is an abundant number, since it is smaller than the sum of its proper divisors (19155257652948).

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

12312310320012 is a wasteful number, since it uses less digits than its factorization.

12312310320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081188410 (or 2081188408 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12312310320012 its reverse (21002301321321), we get a palindrome (33314611641333).

The spelling of 12312310320012 in words is "twelve trillion, three hundred twelve billion, three hundred ten million, three hundred twenty thousand, twelve".