2011011612187 has 2 divisors, whose sum is σ = 2011011612188. Its totient is φ = 2011011612186.

The previous prime is 2011011612157. The next prime is 2011011612193. The reversal of 2011011612187 is 7812161101102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011011612187 - 2³¹ = 2008864128539 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011011612157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005505806093 + 1005505806094.

It is an arithmetic number, because the mean of its divisors is an integer number (1005505806094).

Almost surely, 2^{2011011612187} is an apocalyptic number.

2011011612187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011011612187 is an equidigital number, since it uses as much as digits as its factorization.

2011011612187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 31.

Adding to 2011011612187 its reverse (7812161101102), we get a palindrome (9823172713289).

The spelling of 2011011612187 in words is "two trillion, eleven billion, eleven million, six hundred twelve thousand, one hundred eighty-seven".