200020110091 has 2 divisors, whose sum is σ = 200020110092. Its totient is φ = 200020110090.

The previous prime is 200020110053. The next prime is 200020110107. The reversal of 200020110091 is 190011020002.

It is an a-pointer prime, because the next prime (200020110107) can be obtained adding 200020110091 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200020110091 - 2⁹ = 200020109579 is a prime.

It is not a weakly prime, because it can be changed into another prime (200020110491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010055045 + 100010055046.

It is an arithmetic number, because the mean of its divisors is an integer number (100010055046).

Almost surely, 2^200020110091 is an apocalyptic number.

200020110091 is a deficient number, since it is larger than the sum of its proper divisors (1).

200020110091 is an equidigital number, since it uses as much as digits as its factorization.

200020110091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 200020110091 its reverse (190011020002), we get a palindrome (390031130093).

The spelling of 200020110091 in words is "two hundred billion, twenty million, one hundred ten thousand, ninety-one".