12001109011 has 2 divisors, whose sum is σ = 12001109012. Its totient is φ = 12001109010.

The previous prime is 12001109009. The next prime is 12001109017. The reversal of 12001109011 is 11090110021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12001109011 - 2¹ = 12001109009 is a prime.

Together with 12001109009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12001109017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000554505 + 6000554506.

It is an arithmetic number, because the mean of its divisors is an integer number (6000554506).

Almost surely, 2^12001109011 is an apocalyptic number.

12001109011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001109011 is an equidigital number, since it uses as much as digits as its factorization.

12001109011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 12001109011 its reverse (11090110021), we get a palindrome (23091219032).

The spelling of 12001109011 in words is "twelve billion, one million, one hundred nine thousand, eleven".