12013003231312 has 20 divisors (see below), whose sum is σ = 23327733715200. Its totient is φ = 5992942917728.

The previous prime is 12013003231309. The next prime is 12013003231343. The reversal of 12013003231312 is 21313230031021.

12013003231312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 847411312 + ... + 847425487.

It is an arithmetic number, because the mean of its divisors is an integer number (1166386685760).

Almost surely, 2^{12013003231312} is an apocalyptic number.

It is an amenable number.

12013003231312 is a deficient number, since it is larger than the sum of its proper divisors (11314730483888).

12013003231312 is a wasteful number, since it uses less digits than its factorization.

12013003231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694837250 (or 1694837244 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12013003231312 its reverse (21313230031021), we get a palindrome (33326233262333).

The spelling of 12013003231312 in words is "twelve trillion, thirteen billion, three million, two hundred thirty-one thousand, three hundred twelve".