12111003012 has 12 divisors (see below), whose sum is σ = 28259007056. Its totient is φ = 4037001000.

The previous prime is 12111003011. The next prime is 12111003029. The reversal of 12111003012 is 21030011121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1009250251 = 12111003012 / (1 + 2 + 1 + 1 + 1 + 0 + 0 + 3 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (12111003011) 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 in 3 ways as a sum of consecutive naturals, for example, 504625114 + ... + 504625137.

Almost surely, 2^12111003012 is an apocalyptic number.

12111003012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12111003012 is an abundant number, since it is smaller than the sum of its proper divisors (16148004044).

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

12111003012 is a wasteful number, since it uses less digits than its factorization.

12111003012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009250258 (or 1009250256 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 12111003012 its reverse (21030011121), we get a palindrome (33141014133).

The spelling of 12111003012 in words is "twelve billion, one hundred eleven million, three thousand, twelve".