12031210312 has 32 divisors (see below), whose sum is σ = 24863015520. Its totient is φ = 5412349440.

The previous prime is 12031210249. The next prime is 12031210333. The reversal of 12031210312 is 21301213021.

12031210312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 696198 + ... + 713269.

It is an arithmetic number, because the mean of its divisors is an integer number (776969235).

Almost surely, 2^12031210312 is an apocalyptic number.

It is an amenable number.

12031210312 is an abundant number, since it is smaller than the sum of its proper divisors (12831805208).

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

12031210312 is a wasteful number, since it uses less digits than its factorization.

12031210312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409581 (or 1409577 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12031210312 its reverse (21301213021), we get a palindrome (33332423333).

The spelling of 12031210312 in words is "twelve billion, thirty-one million, two hundred ten thousand, three hundred twelve".