12001231123312 has 40 divisors (see below), whose sum is σ = 23863978857600. Its totient is φ = 5844821492160.

The previous prime is 12001231123309. The next prime is 12001231123339. The reversal of 12001231123312 is 21332113210021.

It is a congruent number.

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, 63547062 + ... + 63735637.

It is an arithmetic number, because the mean of its divisors is an integer number (596599471440).

Almost surely, 2^{12001231123312} is an apocalyptic number.

It is an amenable number.

12001231123312 is a deficient number, since it is larger than the sum of its proper divisors (11862747734288).

12001231123312 is a wasteful number, since it uses less digits than its factorization.

12001231123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127282861 (or 127282855 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12001231123312 its reverse (21332113210021), we get a palindrome (33333344333333).

The spelling of 12001231123312 in words is "twelve trillion, one billion, two hundred thirty-one million, one hundred twenty-three thousand, three hundred twelve".