11313231 has 8 divisors (see below), whose sum is σ = 15492144. Its totient is φ = 7338240.

The previous prime is 11313209. The next prime is 11313271. The reversal of 11313231 is 13231311.

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

It is not a de Polignac number, because 11313231 - 2¹⁰ = 11312207 is a prime.

It is a super-2 number, since 2×11313231² = 255978391318722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11313231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313271) 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 7 ways as a sum of consecutive naturals, for example, 50850 + ... + 51071.

It is an arithmetic number, because the mean of its divisors is an integer number (1936518).

Almost surely, 2^11313231 is an apocalyptic number.

11313231 is a deficient number, since it is larger than the sum of its proper divisors (4178913).

11313231 is a wasteful number, since it uses less digits than its factorization.

11313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101961.

The product of its digits is 54, while the sum is 15.

The square root of 11313231 is about 3363.5146796171. The cubic root of 11313231 is about 224.4892513575.

Adding to 11313231 its reverse (13231311), we get a palindrome (24544542).

The spelling of 11313231 in words is "eleven million, three hundred thirteen thousand, two hundred thirty-one".