12333123312 has 20 divisors (see below), whose sum is σ = 31860568680. Its totient is φ = 4111041088.

The previous prime is 12333123281. The next prime is 12333123323. The reversal of 12333123312 is 21332133321.

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128469987 + ... + 128470082.

It is an arithmetic number, because the mean of its divisors is an integer number (1593028434).

Almost surely, 2^12333123312 is an apocalyptic number.

12333123312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12333123312 is an abundant number, since it is smaller than the sum of its proper divisors (19527445368).

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

12333123312 is a wasteful number, since it uses less digits than its factorization.

12333123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256940080 (or 256940074 counting only the distinct ones).

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

Adding to 12333123312 its reverse (21332133321), we get a palindrome (33665256633).

The spelling of 12333123312 in words is "twelve billion, three hundred thirty-three million, one hundred twenty-three thousand, three hundred twelve".