11001001097 has 2 divisors, whose sum is σ = 11001001098. Its totient is φ = 11001001096.

The previous prime is 11001001073. The next prime is 11001001129. The reversal of 11001001097 is 79010010011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6938723401 + 4062277696 = 83299^2 + 63736^2 .

It is a cyclic number.

It is not a de Polignac number, because 11001001097 - 2⁸ = 11001000841 is a prime.

It is a super-3 number, since 3×11001001097³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (11001001397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500500548 + 5500500549.

It is an arithmetic number, because the mean of its divisors is an integer number (5500500549).

Almost surely, 2^11001001097 is an apocalyptic number.

It is an amenable number.

11001001097 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001001097 is an equidigital number, since it uses as much as digits as its factorization.

11001001097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63, while the sum is 20.

The spelling of 11001001097 in words is "eleven billion, one million, one thousand, ninety-seven".