1100340209 has 2 divisors, whose sum is σ = 1100340210. Its totient is φ = 1100340208.

The previous prime is 1100340187. The next prime is 1100340211. The reversal of 1100340209 is 9020430011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1085900209 + 14440000 = 32953^2 + 3800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100340209 - 2¹⁶ = 1100274673 is a prime.

Together with 1100340211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1100340229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550170104 + 550170105.

It is an arithmetic number, because the mean of its divisors is an integer number (550170105).

Almost surely, 2^1100340209 is an apocalyptic number.

It is an amenable number.

1100340209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100340209 is an equidigital number, since it uses as much as digits as its factorization.

1100340209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1100340209 is about 33171.3763507033. The cubic root of 1100340209 is about 1032.3865259977.

The spelling of 1100340209 in words is "one billion, one hundred million, three hundred forty thousand, two hundred nine".