200110110100991 has 2 divisors, whose sum is σ = 200110110100992. Its totient is φ = 200110110100990.

The previous prime is 200110110100939. The next prime is 200110110101047. The reversal of 200110110100991 is 199001011011002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200110110100991 - 2²⁶ = 200110042992127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200110110100991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200110110100291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100055055050495 + 100055055050496.

It is an arithmetic number, because the mean of its divisors is an integer number (100055055050496).

Almost surely, 2^{200110110100991} is an apocalyptic number.

200110110100991 is a deficient number, since it is larger than the sum of its proper divisors (1).

200110110100991 is an equidigital number, since it uses as much as digits as its factorization.

200110110100991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 26.

Adding to 200110110100991 its reverse (199001011011002), we get a palindrome (399111121111993).

The spelling of 200110110100991 in words is "two hundred trillion, one hundred ten billion, one hundred ten million, one hundred thousand, nine hundred ninety-one".