12312332000 has 144 divisors (see below), whose sum is σ = 31268489616. Its totient is φ = 4764576000.

The previous prime is 12312331981. The next prime is 12312332057. The reversal of 12312332000 is 23321321.

It is a self number, because there is not a number n which added to its sum of digits gives 12312332000.

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, 3842399 + ... + 3845601.

It is an arithmetic number, because the mean of its divisors is an integer number (217142289).

Almost surely, 2^12312332000 is an apocalyptic number.

12312332000 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 12312332000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15634244808).

12312332000 is an abundant number, since it is smaller than the sum of its proper divisors (18956157616).

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

12312332000 is an equidigital number, since it uses as much as digits as its factorization.

12312332000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290 (or 3241 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12312332000 its reverse (23321321), we get a palindrome (12335653321).

The spelling of 12312332000 in words is "twelve billion, three hundred twelve million, three hundred thirty-two thousand".