12023132112 has 60 divisors (see below), whose sum is σ = 33981261444. Its totient is φ = 3968025600.

The previous prime is 12023132083. The next prime is 12023132117. The reversal of 12023132112 is 21123132021.

12023132112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11749692816 + 273439296 = 108396^2 + 16536^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023132117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 398793 + ... + 427880.

Almost surely, 2^12023132112 is an apocalyptic number.

12023132112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12023132112 is an abundant number, since it is smaller than the sum of its proper divisors (21958129332).

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

12023132112 is a wasteful number, since it uses less digits than its factorization.

12023132112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826788 (or 826779 counting only the distinct ones).

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

Adding to 12023132112 its reverse (21123132021), we get a palindrome (33146264133).

Subtracting 12023132112 from its reverse (21123132021), we obtain a palindrome (9099999909).

The spelling of 12023132112 in words is "twelve billion, twenty-three million, one hundred thirty-two thousand, one hundred twelve".