12323012112 has 240 divisors, whose sum is σ = 36670652928. Its totient is φ = 4004951040.

The previous prime is 12323012087. The next prime is 12323012131. The reversal of 12323012112 is 21121032321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52888348 + ... + 52888580.

Almost surely, 2^12323012112 is an apocalyptic number.

12323012112 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 12323012112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18335326464).

12323012112 is an abundant number, since it is smaller than the sum of its proper divisors (24347640816).

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

12323012112 is a wasteful number, since it uses less digits than its factorization.

12323012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12323012112 its reverse (21121032321), we get a palindrome (33444044433).

The spelling of 12323012112 in words is "twelve billion, three hundred twenty-three million, twelve thousand, one hundred twelve".