12012103112 has 32 divisors (see below), whose sum is σ = 23069340000. Its totient is φ = 5861745408.

The previous prime is 12012103109. The next prime is 12012103123. The reversal of 12012103112 is 21130121021.

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, 25937 + ... + 157152.

It is an arithmetic number, because the mean of its divisors is an integer number (720916875).

Almost surely, 2^12012103112 is an apocalyptic number.

It is an amenable number.

12012103112 is a deficient number, since it is larger than the sum of its proper divisors (11057236888).

12012103112 is a wasteful number, since it uses less digits than its factorization.

12012103112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183293 (or 183289 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12012103112 its reverse (21130121021), we get a palindrome (33142224133).

The spelling of 12012103112 in words is "twelve billion, twelve million, one hundred three thousand, one hundred twelve".