12311331200 has 192 divisors, whose sum is σ = 36588134400. Its totient is φ = 3998730240.

The previous prime is 12311331191. The next prime is 12311331259. The reversal of 12311331200 is 213311321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 411137 + ... + 440063.

It is an arithmetic number, because the mean of its divisors is an integer number (190563200).

Almost surely, 2^12311331200 is an apocalyptic number.

12311331200 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 12311331200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18294067200).

12311331200 is an abundant number, since it is smaller than the sum of its proper divisors (24276803200).

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

12311331200 is a wasteful number, since it uses less digits than its factorization.

12311331200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28977 (or 28960 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12311331200 its reverse (213311321), we get a palindrome (12524642521).

The spelling of 12311331200 in words is "twelve billion, three hundred eleven million, three hundred thirty-one thousand, two hundred".