11640303 has 6 divisors (see below), whose sum is σ = 16813784. Its totient is φ = 7760196.

The previous prime is 11640271. The next prime is 11640313. The reversal of 11640303 is 30304611.

It is not a de Polignac number, because 11640303 - 2⁵ = 11640271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11640313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 646675 + ... + 646692.

Almost surely, 2^11640303 is an apocalyptic number.

11640303 is a deficient number, since it is larger than the sum of its proper divisors (5173481).

11640303 is a wasteful number, since it uses less digits than its factorization.

11640303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293373 (or 1293370 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 11640303 is about 3411.7888269938. The cubic root of 11640303 is about 226.6321028131.

Adding to 11640303 its reverse (30304611), we get a palindrome (41944914).

The spelling of 11640303 in words is "eleven million, six hundred forty thousand, three hundred three".