201100111187 has 2 divisors, whose sum is σ = 201100111188. Its totient is φ = 201100111186.

The previous prime is 201100111099. The next prime is 201100111189. The reversal of 201100111187 is 781111001102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201100111187 - 2¹⁸ = 201099849043 is a prime.

Together with 201100111189, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (201100111189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550055593 + 100550055594.

It is an arithmetic number, because the mean of its divisors is an integer number (100550055594).

Almost surely, 2^201100111187 is an apocalyptic number.

201100111187 is a deficient number, since it is larger than the sum of its proper divisors (1).

201100111187 is an equidigital number, since it uses as much as digits as its factorization.

201100111187 is an odious number, because the sum of its binary digits is odd.

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

Adding to 201100111187 its reverse (781111001102), we get a palindrome (982211112289).

The spelling of 201100111187 in words is "two hundred one billion, one hundred million, one hundred eleven thousand, one hundred eighty-seven".