12331233312 has 96 divisors (see below), whose sum is σ = 33499376064. Its totient is φ = 3968640000.

The previous prime is 12331233311. The next prime is 12331233337. The reversal of 12331233312 is 21333213321.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12331233311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452062 + ... + 478562.

It is an arithmetic number, because the mean of its divisors is an integer number (348951834).

Almost surely, 2^12331233312 is an apocalyptic number.

12331233312 is a gapful number since it is divisible by the number (12) 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 12331233312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16749688032).

12331233312 is an abundant number, since it is smaller than the sum of its proper divisors (21168142752).

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

12331233312 is a wasteful number, since it uses less digits than its factorization.

12331233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26682 (or 26674 counting only the distinct ones).

The product of its digits is 1944, while the sum is 24.

Adding to 12331233312 its reverse (21333213321), we get a palindrome (33664446633).

The spelling of 12331233312 in words is "twelve billion, three hundred thirty-one million, two hundred thirty-three thousand, three hundred twelve".