12001020011 has 2 divisors, whose sum is σ = 12001020012. Its totient is φ = 12001020010.

The previous prime is 12001019993. The next prime is 12001020019. The reversal of 12001020011 is 11002010021.

It is an a-pointer prime, because the next prime (12001020019) can be obtained adding 12001020011 to its sum of digits (8).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12001020011 - 2¹⁰ = 12001018987 is a prime.

It is not a weakly prime, because it can be changed into another prime (12001020019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000510005 + 6000510006.

It is an arithmetic number, because the mean of its divisors is an integer number (6000510006).

Almost surely, 2^12001020011 is an apocalyptic number.

12001020011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001020011 is an equidigital number, since it uses as much as digits as its factorization.

12001020011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12001020011 its reverse (11002010021), we get a palindrome (23003030032).

The spelling of 12001020011 in words is "twelve billion, one million, twenty thousand, eleven".