1000011211187 has 2 divisors, whose sum is σ = 1000011211188. Its totient is φ = 1000011211186.

The previous prime is 1000011211151. The next prime is 1000011211273. The reversal of 1000011211187 is 7811121100001.

It is a weak prime.

It is an emirp because it is prime and its reverse (7811121100001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000011211187 - 2⁶ = 1000011211123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000011291187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500005605593 + 500005605594.

It is an arithmetic number, because the mean of its divisors is an integer number (500005605594).

Almost surely, 2^{1000011211187} is an apocalyptic number.

1000011211187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000011211187 is an equidigital number, since it uses as much as digits as its factorization.

1000011211187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 23.

Adding to 1000011211187 its reverse (7811121100001), we get a palindrome (8811132311188).

The spelling of 1000011211187 in words is "one trillion, eleven million, two hundred eleven thousand, one hundred eighty-seven".