12320023012 has 72 divisors (see below), whose sum is σ = 25141625208. Its totient is φ = 5260231680.

The previous prime is 12320022977. The next prime is 12320023013. The reversal of 12320023012 is 21032002321.

12320023012 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 4 ways, for example, as 1014804736 + 11305218276 = 31856^2 + 106326^2 .

It is not an unprimeable number, because it can be changed into a prime (12320023013) 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 23 ways as a sum of consecutive naturals, for example, 5371738 + ... + 5374030.

It is an arithmetic number, because the mean of its divisors is an integer number (349189239).

Almost surely, 2^12320023012 is an apocalyptic number.

It is an amenable number.

12320023012 is an abundant number, since it is smaller than the sum of its proper divisors (12821602196).

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

12320023012 is a wasteful number, since it uses less digits than its factorization.

12320023012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989 (or 2976 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12320023012 its reverse (21032002321), we get a palindrome (33352025333).

The spelling of 12320023012 in words is "twelve billion, three hundred twenty million, twenty-three thousand, twelve".