11132013231 has 24 divisors (see below), whose sum is σ = 16769427584. Its totient is φ = 7107886080.

The previous prime is 11132013199. The next prime is 11132013259. The reversal of 11132013231 is 13231023111.

11132013231 is a `hidden beast` number, since 111 + 320 + 1 + 3 + 231 = 666.

11132013231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11132013231 - 2⁵ = 11132013199 is a prime.

It is a super-2 number, since 2×11132013231² (a number of 21 digits) 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 (11132813231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178606 + ... + 232731.

Almost surely, 2^11132013231 is an apocalyptic number.

11132013231 is a deficient number, since it is larger than the sum of its proper divisors (5637414353).

11132013231 is a wasteful number, since it uses less digits than its factorization.

11132013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411471 (or 411468 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11132013231 its reverse (13231023111), we get a palindrome (24363036342).

The spelling of 11132013231 in words is "eleven billion, one hundred thirty-two million, thirteen thousand, two hundred thirty-one".