12012030011 has 4 divisors (see below), whose sum is σ = 12215623800. Its totient is φ = 11808436224.

The previous prime is 12012030001. The next prime is 12012030013. The reversal of 12012030011 is 11003021021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12012030011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012029974 and 12012030001.

It is not an unprimeable number, because it can be changed into a prime (12012030013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101796806 + ... + 101796923.

It is an arithmetic number, because the mean of its divisors is an integer number (3053905950).

Almost surely, 2^12012030011 is an apocalyptic number.

12012030011 is a deficient number, since it is larger than the sum of its proper divisors (203593789).

12012030011 is an equidigital number, since it uses as much as digits as its factorization.

12012030011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203593788.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12012030011 its reverse (11003021021), we get a palindrome (23015051032).

The spelling of 12012030011 in words is "twelve billion, twelve million, thirty thousand, eleven".