11130303231 has 24 divisors (see below), whose sum is σ = 16684571904. Its totient is φ = 7414853400.

The previous prime is 11130303203. The next prime is 11130303253. The reversal of 11130303231 is 13230303111.

It is a happy number.

11130303231 is a `hidden beast` number, since 1 + 1 + 130 + 303 + 231 = 666.

It is not a de Polignac number, because 11130303231 - 2²² = 11126108927 is a prime.

It is a super-2 number, since 2×11130303231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11130303281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336810 + ... + 368376.

It is an arithmetic number, because the mean of its divisors is an integer number (695190496).

Almost surely, 2^11130303231 is an apocalyptic number.

11130303231 is a deficient number, since it is larger than the sum of its proper divisors (5554268673).

11130303231 is an equidigital number, since it uses as much as digits as its factorization.

11130303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33033 (or 33021 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 11130303231 its reverse (13230303111), we get a palindrome (24360606342).

The spelling of 11130303231 in words is "eleven billion, one hundred thirty million, three hundred three thousand, two hundred thirty-one".