12321333312 has 56 divisors (see below), whose sum is σ = 34017606336. Its totient is φ = 3928539648.

The previous prime is 12321333293. The next prime is 12321333341. The reversal of 12321333312 is 21333312321.

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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1390663 + ... + 1399494.

It is an arithmetic number, because the mean of its divisors is an integer number (607457256).

Almost surely, 2^12321333312 is an apocalyptic number.

12321333312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12321333312 is an abundant number, since it is smaller than the sum of its proper divisors (21696273024).

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

12321333312 is a wasteful number, since it uses less digits than its factorization.

12321333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790195 (or 2790185 counting only the distinct ones).

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

Adding to 12321333312 its reverse (21333312321), we get a palindrome (33654645633).

The spelling of 12321333312 in words is "twelve billion, three hundred twenty-one million, three hundred thirty-three thousand, three hundred twelve".