12103130312 has 64 divisors (see below), whose sum is σ = 28347285120. Its totient is φ = 4716569088.

The previous prime is 12103130227. The next prime is 12103130323. The reversal of 12103130312 is 21303130121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75293 + ... + 172844.

It is an arithmetic number, because the mean of its divisors is an integer number (442926330).

Almost surely, 2^12103130312 is an apocalyptic number.

It is an amenable number.

12103130312 is an abundant number, since it is smaller than the sum of its proper divisors (16244154808).

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

12103130312 is a wasteful number, since it uses less digits than its factorization.

12103130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248230 (or 248226 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12103130312 its reverse (21303130121), we get a palindrome (33406260433).

The spelling of 12103130312 in words is "twelve billion, one hundred three million, one hundred thirty thousand, three hundred twelve".