11609203 has 2 divisors, whose sum is σ = 11609204. Its totient is φ = 11609202.

The previous prime is 11609201. The next prime is 11609303. The reversal of 11609203 is 30290611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11609203 - 2¹ = 11609201 is a prime.

Together with 11609201, it forms a pair of twin primes.

It is equal to p₇₆₄₀₅₀ and since 11609203 and 764050 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11609201) 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, 5804601 + 5804602.

It is an arithmetic number, because the mean of its divisors is an integer number (5804602).

Almost surely, 2^11609203 is an apocalyptic number.

11609203 is a deficient number, since it is larger than the sum of its proper divisors (1).

11609203 is an equidigital number, since it uses as much as digits as its factorization.

11609203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 11609203 is about 3407.2280522442. The cubic root of 11609203 is about 226.4300878886.

Adding to 11609203 its reverse (30290611), we get a palindrome (41899814).

The spelling of 11609203 in words is "eleven million, six hundred nine thousand, two hundred three".