11111000011009 has 2 divisors, whose sum is σ = 11111000011010. Its totient is φ = 11111000011008.

The previous prime is 11111000011003. The next prime is 11111000011039. The reversal of 11111000011009 is 90011000011111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10992507095025 + 118492915984 = 3315495^2 + 344228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111000011009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11111000010983 and 11111000011001.

It is not a weakly prime, because it can be changed into another prime (11111000011003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555500005504 + 5555500005505.

It is an arithmetic number, because the mean of its divisors is an integer number (5555500005505).

Almost surely, 2^{11111000011009} is an apocalyptic number.

It is an amenable number.

11111000011009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111000011009 is an equidigital number, since it uses as much as digits as its factorization.

11111000011009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 11111000011009 in words is "eleven trillion, one hundred eleven billion, eleven thousand, nine".