12111132412 has 6 divisors (see below), whose sum is σ = 21194481728. Its totient is φ = 6055566204.

The previous prime is 12111132403. The next prime is 12111132413. The reversal of 12111132412 is 21423111121.

It is a self number, because there is not a number n which added to its sum of digits gives 12111132412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111132413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1513891548 + ... + 1513891555.

Almost surely, 2^12111132412 is an apocalyptic number.

It is an amenable number.

12111132412 is a deficient number, since it is larger than the sum of its proper divisors (9083349316).

12111132412 is a wasteful number, since it uses less digits than its factorization.

12111132412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027783107 (or 3027783105 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

Adding to 12111132412 its reverse (21423111121), we get a palindrome (33534243533).

The spelling of 12111132412 in words is "twelve billion, one hundred eleven million, one hundred thirty-two thousand, four hundred twelve".