11134433231 has 4 divisors (see below), whose sum is σ = 11136071952. Its totient is φ = 11132794512.

The previous prime is 11134433227. The next prime is 11134433243. The reversal of 11134433231 is 13233443111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11134433231 - 2² = 11134433227 is a prime.

It is a super-2 number, since 2×11134433231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11134433231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11134433131) 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 3 ways as a sum of consecutive naturals, for example, 809126 + ... + 822771.

It is an arithmetic number, because the mean of its divisors is an integer number (2784017988).

Almost surely, 2^11134433231 is an apocalyptic number.

11134433231 is a deficient number, since it is larger than the sum of its proper divisors (1638721).

11134433231 is an equidigital number, since it uses as much as digits as its factorization.

11134433231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638720.

The product of its digits is 2592, while the sum is 26.

Adding to 11134433231 its reverse (13233443111), we get a palindrome (24367876342).

It can be divided in two parts, 1113 and 4433231, that added together give a palindrome (4434344).

The spelling of 11134433231 in words is "eleven billion, one hundred thirty-four million, four hundred thirty-three thousand, two hundred thirty-one".