11111110000009 has 2 divisors, whose sum is σ = 11111110000010. Its totient is φ = 11111110000008.

The previous prime is 11111109999991. The next prime is 11111110000057. The reversal of 11111110000009 is 90000001111111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7141962278025 + 3969147721984 = 2672445^2 + 1992272^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111110000009 - 2⁷ = 11111109999881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11111109999947 and 11111110000001.

It is not a weakly prime, because it can be changed into another prime (11111110000069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555555000004 + 5555555000005.

It is an arithmetic number, because the mean of its divisors is an integer number (5555555000005).

Almost surely, 2^{11111110000009} is an apocalyptic number.

It is an amenable number.

11111110000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111110000009 is an equidigital number, since it uses as much as digits as its factorization.

11111110000009 is an evil number, because the sum of its binary digits is even.

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

The spelling of 11111110000009 in words is "eleven trillion, one hundred eleven billion, one hundred ten million, nine", and thus it is an aban number.