12103102312 has 48 divisors (see below), whose sum is σ = 26419664160. Its totient is φ = 5182855776.

The previous prime is 12103102279. The next prime is 12103102327. The reversal of 12103102312 is 21320130121.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 500533 + ... + 524155.

It is an arithmetic number, because the mean of its divisors is an integer number (550409670).

Almost surely, 2^12103102312 is an apocalyptic number.

It is an amenable number.

12103102312 is an abundant number, since it is smaller than the sum of its proper divisors (14316561848).

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

12103102312 is a wasteful number, since it uses less digits than its factorization.

12103102312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24950 (or 24939 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12103102312 its reverse (21320130121), we get a palindrome (33423232433).

The spelling of 12103102312 in words is "twelve billion, one hundred three million, one hundred two thousand, three hundred twelve".