11200109 has 2 divisors, whose sum is σ = 11200110. Its totient is φ = 11200108.

The previous prime is 11200097. The next prime is 11200129. The reversal of 11200109 is 90100211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10259209 + 940900 = 3203^2 + 970^2 .

It is a cyclic number.

It is not a de Polignac number, because 11200109 - 2¹⁶ = 11134573 is a prime.

It is a super-2 number, since 2×11200109² = 250884883223762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11200093 and 11200102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11200129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600054 + 5600055.

It is an arithmetic number, because the mean of its divisors is an integer number (5600055).

Almost surely, 2^11200109 is an apocalyptic number.

It is an amenable number.

11200109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11200109 is an equidigital number, since it uses as much as digits as its factorization.

11200109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 11200109 is about 3346.6563910865. The cubic root of 11200109 is about 223.7385142300.

The spelling of 11200109 in words is "eleven million, two hundred thousand, one hundred nine".