11131685186 has 8 divisors (see below), whose sum is σ = 16699535424. Its totient is φ = 5565173380.

The previous prime is 11131685183. The next prime is 11131685203. The reversal of 11131685186 is 68158613111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11131685183) 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 in 3 ways as a sum of consecutive naturals, for example, 313550 + ... + 347241.

It is an arithmetic number, because the mean of its divisors is an integer number (2087441928).

Almost surely, 2^11131685186 is an apocalyptic number.

11131685186 is a deficient number, since it is larger than the sum of its proper divisors (5567850238).

11131685186 is an equidigital number, since it uses as much as digits as its factorization.

11131685186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669216.

The product of its digits is 34560, while the sum is 41.

The spelling of 11131685186 in words is "eleven billion, one hundred thirty-one million, six hundred eighty-five thousand, one hundred eighty-six".