12001313211312 has 40 divisors (see below), whose sum is σ = 31025088505840. Its totient is φ = 3997638247680.

The previous prime is 12001313211253. The next prime is 12001313211323. The reversal of 12001313211312 is 21311231310021.

It is a super-2 number, since 2×12001313211312² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87414739 + ... + 87551922.

It is an arithmetic number, because the mean of its divisors is an integer number (775627212646).

Almost surely, 2^{12001313211312} is an apocalyptic number.

12001313211312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001313211312 is an abundant number, since it is smaller than the sum of its proper divisors (19023775294528).

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

12001313211312 is a wasteful number, since it uses less digits than its factorization.

12001313211312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174968101 (or 174968095 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12001313211312 its reverse (21311231310021), we get a palindrome (33312544521333).

The spelling of 12001313211312 in words is "twelve trillion, one billion, three hundred thirteen million, two hundred eleven thousand, three hundred twelve".