111001100000009 has 2 divisors, whose sum is σ = 111001100000010. Its totient is φ = 111001100000008.

The previous prime is 111001099999981. The next prime is 111001100000041. The reversal of 111001100000009 is 900000001100111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110404193875600 + 596906124409 = 10507340^2 + 772597^2 .

It is a cyclic number.

It is not a de Polignac number, because 111001100000009 - 2⁴⁴ = 93408913955593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111001099999939 and 111001100000002.

It is not a weakly prime, because it can be changed into another prime (111001106000009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500550000004 + 55500550000005.

It is an arithmetic number, because the mean of its divisors is an integer number (55500550000005).

Almost surely, 2^{111001100000009} is an apocalyptic number.

It is an amenable number.

111001100000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

111001100000009 is an equidigital number, since it uses as much as digits as its factorization.

111001100000009 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 14.

The spelling of 111001100000009 in words is "one hundred eleven trillion, one billion, one hundred million, nine", and thus it is an aban number.