11636281223 has 12 divisors (see below), whose sum is σ = 13560859512. Its totient is φ = 9955698480.

The previous prime is 11636281199. The next prime is 11636281229. The reversal of 11636281223 is 32218263611.

It is not a de Polignac number, because 11636281223 - 2²⁴ = 11619504007 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 (11636281229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190268 + ... + 243873.

It is an arithmetic number, because the mean of its divisors is an integer number (1130071626).

Almost surely, 2^11636281223 is an apocalyptic number.

11636281223 is a deficient number, since it is larger than the sum of its proper divisors (1924578289).

11636281223 is an equidigital number, since it uses as much as digits as its factorization.

11636281223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434702 (or 434695 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The spelling of 11636281223 in words is "eleven billion, six hundred thirty-six million, two hundred eighty-one thousand, two hundred twenty-three".