11100191011097 has 2 divisors, whose sum is σ = 11100191011098. Its totient is φ = 11100191011096.

The previous prime is 11100191011027. The next prime is 11100191011111. The reversal of 11100191011097 is 79011019100111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9890672763136 + 1209518247961 = 3144944^2 + 1099781^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100191011097 - 2²⁴ = 11100174233881 is a prime.

It is not a weakly prime, because it can be changed into another prime (11100191011027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550095505548 + 5550095505549.

It is an arithmetic number, because the mean of its divisors is an integer number (5550095505549).

Almost surely, 2^{11100191011097} is an apocalyptic number.

It is an amenable number.

11100191011097 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100191011097 is an equidigital number, since it uses as much as digits as its factorization.

11100191011097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 32.

The spelling of 11100191011097 in words is "eleven trillion, one hundred billion, one hundred ninety-one million, eleven thousand, ninety-seven".