11001101001091 has 2 divisors, whose sum is σ = 11001101001092. Its totient is φ = 11001101001090.

The previous prime is 11001101001073. The next prime is 11001101001119. The reversal of 11001101001091 is 19010010110011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11001101001091 - 2⁷ = 11001101000963 is a prime.

It is not a weakly prime, because it can be changed into another prime (11001101001001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500550500545 + 5500550500546.

It is an arithmetic number, because the mean of its divisors is an integer number (5500550500546).

Almost surely, 2^{11001101001091} is an apocalyptic number.

11001101001091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001101001091 is an equidigital number, since it uses as much as digits as its factorization.

11001101001091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 11001101001091 in words is "eleven trillion, one billion, one hundred one million, one thousand, ninety-one".