11000021111109 has 12 divisors (see below), whose sum is σ = 15995556427500. Its totient is φ = 7284130309824.

The previous prime is 11000021111099. The next prime is 11000021111179. The reversal of 11000021111109 is 90111112000011.

It can be written as a sum of positive squares in 2 ways, for example, as 877506183009 + 10122514928100 = 936753^2 + 3181590^2 .

It is not a de Polignac number, because 11000021111109 - 2⁹ = 11000021110597 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11000021111091 and 11000021111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000021111179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4101423384 + ... + 4101426065.

It is an arithmetic number, because the mean of its divisors is an integer number (1332963035625).

Almost surely, 2^{11000021111109} is an apocalyptic number.

It is an amenable number.

11000021111109 is a deficient number, since it is larger than the sum of its proper divisors (4995535316391).

11000021111109 is a wasteful number, since it uses less digits than its factorization.

11000021111109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8202849604 (or 8202849601 counting only the distinct ones).

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

The spelling of 11000021111109 in words is "eleven trillion, twenty-one million, one hundred eleven thousand, one hundred nine".