11121010111009 has 32 divisors (see below), whose sum is σ = 11655435617280. Its totient is φ = 10600855948800.

The previous prime is 11121010111007. The next prime is 11121010111037. The reversal of 11121010111009 is 90011101012111.

It is a cyclic number.

It is not a de Polignac number, because 11121010111009 - 2¹ = 11121010111007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121010111007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2265430447 + ... + 2265435355.

It is an arithmetic number, because the mean of its divisors is an integer number (364232363040).

Almost surely, 2^{11121010111009} is an apocalyptic number.

It is an amenable number.

11121010111009 is a deficient number, since it is larger than the sum of its proper divisors (534425506271).

11121010111009 is a wasteful number, since it uses less digits than its factorization.

11121010111009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9121.

The product of its (nonzero) digits is 18, while the sum is 19.

The spelling of 11121010111009 in words is "eleven trillion, one hundred twenty-one billion, ten million, one hundred eleven thousand, nine".