12130312012 has 36 divisors (see below), whose sum is σ = 26593381920. Its totient is φ = 4798803744.

The previous prime is 12130312003. The next prime is 12130312013. The reversal of 12130312012 is 21021303121.

It is not an unprimeable number, because it can be changed into a prime (12130312013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2377812 + ... + 2382907.

Almost surely, 2^12130312012 is an apocalyptic number.

It is an amenable number.

12130312012 is an abundant number, since it is smaller than the sum of its proper divisors (14463069908).

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

12130312012 is a wasteful number, since it uses less digits than its factorization.

12130312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760750 (or 4760741 counting only the distinct ones).

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

Adding to 12130312012 its reverse (21021303121), we get a palindrome (33151615133).

The spelling of 12130312012 in words is "twelve billion, one hundred thirty million, three hundred twelve thousand, twelve".