11130231 has 16 divisors (see below), whose sum is σ = 17177600. Its totient is φ = 6278688.

The previous prime is 11130227. The next prime is 11130253. The reversal of 11130231 is 13203111.

It is not a de Polignac number, because 11130231 - 2² = 11130227 is a prime.

It is a super-2 number, since 2×11130231² = 247764084226722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11130221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1696 + ... + 5013.

It is an arithmetic number, because the mean of its divisors is an integer number (1073600).

Almost surely, 2^11130231 is an apocalyptic number.

11130231 is a deficient number, since it is larger than the sum of its proper divisors (6047369).

11130231 is an equidigital number, since it uses as much as digits as its factorization.

11130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 11130231 is about 3336.2000839278. The cubic root of 11130231 is about 223.2722381830.

Adding to 11130231 its reverse (13203111), we get a palindrome (24333342).

The spelling of 11130231 in words is "eleven million, one hundred thirty thousand, two hundred thirty-one".