12311312200 has 96 divisors (see below), whose sum is σ = 32869548000. Its totient is φ = 4241203200.

The previous prime is 12311312197. The next prime is 12311312207. The reversal of 12311312200 is 221311321.

It is not an unprimeable number, because it can be changed into a prime (12311312207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105465 + ... + 189064.

It is an arithmetic number, because the mean of its divisors is an integer number (342391125).

Almost surely, 2^12311312200 is an apocalyptic number.

12311312200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12311312200 is an abundant number, since it is smaller than the sum of its proper divisors (20558235800).

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

12311312200 is a wasteful number, since it uses less digits than its factorization.

12311312200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294575 (or 294566 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12311312200 its reverse (221311321), we get a palindrome (12532623521).

The spelling of 12311312200 in words is "twelve billion, three hundred eleven million, three hundred twelve thousand, two hundred".