11012110120091 has 2 divisors, whose sum is σ = 11012110120092. Its totient is φ = 11012110120090.

The previous prime is 11012110120057. The next prime is 11012110120111. The reversal of 11012110120091 is 19002101121011.

It is an a-pointer prime, because the next prime (11012110120111) can be obtained adding 11012110120091 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11012110120091 - 2¹⁰ = 11012110119067 is a prime.

It is not a weakly prime, because it can be changed into another prime (11012110120001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506055060045 + 5506055060046.

It is an arithmetic number, because the mean of its divisors is an integer number (5506055060046).

Almost surely, 2^{11012110120091} is an apocalyptic number.

11012110120091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012110120091 is an equidigital number, since it uses as much as digits as its factorization.

11012110120091 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.

The spelling of 11012110120091 in words is "eleven trillion, twelve billion, one hundred ten million, one hundred twenty thousand, ninety-one".