201101011120091 has 2 divisors, whose sum is σ = 201101011120092. Its totient is φ = 201101011120090.

The previous prime is 201101011120073. The next prime is 201101011120117. The reversal of 201101011120091 is 190021110101102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201101011120091 - 2¹⁸ = 201101010857947 is a prime.

It is not a weakly prime, because it can be changed into another prime (201101011122091) 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, 100550505560045 + 100550505560046.

It is an arithmetic number, because the mean of its divisors is an integer number (100550505560046).

Almost surely, 2^{201101011120091} is an apocalyptic number.

201101011120091 is a deficient number, since it is larger than the sum of its proper divisors (1).

201101011120091 is an equidigital number, since it uses as much as digits as its factorization.

201101011120091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 20.

Adding to 201101011120091 its reverse (190021110101102), we get a palindrome (391122121221193).

The spelling of 201101011120091 in words is "two hundred one trillion, one hundred one billion, eleven million, one hundred twenty thousand, ninety-one".