2011143187 has 2 divisors, whose sum is σ = 2011143188. Its totient is φ = 2011143186.

The previous prime is 2011143143. The next prime is 2011143229. The reversal of 2011143187 is 7813411102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011143187 - 2⁷ = 2011143059 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011143107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005571593 + 1005571594.

It is an arithmetic number, because the mean of its divisors is an integer number (1005571594).

Almost surely, 2^2011143187 is an apocalyptic number.

2011143187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011143187 is an equidigital number, since it uses as much as digits as its factorization.

2011143187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 2011143187 is about 44845.7711161264. The cubic root of 2011143187 is about 1262.2566402413.

Adding to 2011143187 its reverse (7813411102), we get a palindrome (9824554289).

The spelling of 2011143187 in words is "two billion, eleven million, one hundred forty-three thousand, one hundred eighty-seven".