11011911209101 has 4 divisors (see below), whose sum is σ = 12012994046304. Its totient is φ = 10010828371900.

The previous prime is 11011911209087. The next prime is 11011911209107. The reversal of 11011911209101 is 10190211911011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11011911209101 - 2²⁵ = 11011877654669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11011911209101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011911209107) 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, 500541418585 + ... + 500541418606.

It is an arithmetic number, because the mean of its divisors is an integer number (3003248511576).

Almost surely, 2^{11011911209101} is an apocalyptic number.

11011911209101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11011911209101 is a deficient number, since it is larger than the sum of its proper divisors (1001082837203).

11011911209101 is a wasteful number, since it uses less digits than its factorization.

11011911209101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001082837202.

The product of its (nonzero) digits is 162, while the sum is 28.

The spelling of 11011911209101 in words is "eleven trillion, eleven billion, nine hundred eleven million, two hundred nine thousand, one hundred one".