201110099989 has 2 divisors, whose sum is σ = 201110099990. Its totient is φ = 201110099988.

The previous prime is 201110099987. The next prime is 201110100019. The reversal of 201110099989 is 989990011102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115236486225 + 85873613764 = 339465^2 + 293042^2 .

It is a cyclic number.

It is not a de Polignac number, because 201110099989 - 2¹ = 201110099987 is a prime.

Together with 201110099987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201110099987) 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, 100555049994 + 100555049995.

It is an arithmetic number, because the mean of its divisors is an integer number (100555049995).

Almost surely, 2^201110099989 is an apocalyptic number.

It is an amenable number.

201110099989 is a deficient number, since it is larger than the sum of its proper divisors (1).

201110099989 is an equidigital number, since it uses as much as digits as its factorization.

201110099989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 49.

The spelling of 201110099989 in words is "two hundred one billion, one hundred ten million, ninety-nine thousand, nine hundred eighty-nine".