12131030212 has 12 divisors (see below), whose sum is σ = 24262060480. Its totient is φ = 5199012936.

The previous prime is 12131030209. The next prime is 12131030243. The reversal of 12131030212 is 21203013121.

12131030212 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216625512 + ... + 216625567.

Almost surely, 2^12131030212 is an apocalyptic number.

It is an amenable number.

12131030212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12131030212 is a wasteful number, since it uses less digits than its factorization.

12131030212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433251090 (or 433251088 counting only the distinct ones).

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

Adding to 12131030212 its reverse (21203013121), we get a palindrome (33334043333).

The spelling of 12131030212 in words is "twelve billion, one hundred thirty-one million, thirty thousand, two hundred twelve".