1103120209 has 2 divisors, whose sum is σ = 1103120210. Its totient is φ = 1103120208.

The previous prime is 1103120177. The next prime is 1103120219. The reversal of 1103120209 is 9020213011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1060935184 + 42185025 = 32572^2 + 6495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103120209 - 2⁵ = 1103120177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1103120219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551560104 + 551560105.

It is an arithmetic number, because the mean of its divisors is an integer number (551560105).

Almost surely, 2^1103120209 is an apocalyptic number.

It is an amenable number.

1103120209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103120209 is an equidigital number, since it uses as much as digits as its factorization.

1103120209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1103120209 is about 33213.2535142223. The cubic root of 1103120209 is about 1033.2552333504.

The spelling of 1103120209 in words is "one billion, one hundred three million, one hundred twenty thousand, two hundred nine".