11090910911 has 4 divisors (see below), whose sum is σ = 11194564392. Its totient is φ = 10987257432.

The previous prime is 11090910893. The next prime is 11090910973. The reversal of 11090910911 is 11901909011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11901909011 = 67 ⋅177640433.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11090910911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11090910991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51826580 + ... + 51826793.

It is an arithmetic number, because the mean of its divisors is an integer number (2798641098).

Almost surely, 2^11090910911 is an apocalyptic number.

11090910911 is a deficient number, since it is larger than the sum of its proper divisors (103653481).

11090910911 is a wasteful number, since it uses less digits than its factorization.

11090910911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103653480.

The product of its (nonzero) digits is 729, while the sum is 32.

The spelling of 11090910911 in words is "eleven billion, ninety million, nine hundred ten thousand, nine hundred eleven".