1101100009 has 2 divisors, whose sum is σ = 1101100010. Its totient is φ = 1101100008.

The previous prime is 1101099947. The next prime is 1101100019. The reversal of 1101100009 is 9000011011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1071907600 + 29192409 = 32740^2 + 5403^2 .

It is an emirp because it is prime and its reverse (9000011011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101100009 - 2²³ = 1092711401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101100019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550550004 + 550550005.

It is an arithmetic number, because the mean of its divisors is an integer number (550550005).

Almost surely, 2^1101100009 is an apocalyptic number.

It is an amenable number.

1101100009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101100009 is an equidigital number, since it uses as much as digits as its factorization.

1101100009 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 13.

The square root of 1101100009 is about 33182.8270194087. The cubic root of 1101100009 is about 1032.6240970075.

The spelling of 1101100009 in words is "one billion, one hundred one million, one hundred thousand, nine".