11680243 has 4 divisors (see below), whose sum is σ = 12083040. Its totient is φ = 11277448.

The previous prime is 11680237. The next prime is 11680247. The reversal of 11680243 is 34208611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11680243 - 2¹³ = 11672051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11680247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201355 + ... + 201412.

It is an arithmetic number, because the mean of its divisors is an integer number (3020760).

Almost surely, 2^11680243 is an apocalyptic number.

11680243 is a deficient number, since it is larger than the sum of its proper divisors (402797).

11680243 is an equidigital number, since it uses as much as digits as its factorization.

11680243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402796.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 11680243 is about 3417.6370491906. The cubic root of 11680243 is about 226.8910122595.

Adding to 11680243 its reverse (34208611), we get a palindrome (45888854).

The spelling of 11680243 in words is "eleven million, six hundred eighty thousand, two hundred forty-three".