11123113333231 has 8 divisors (see below), whose sum is σ = 11210773299200. Its totient is φ = 11035454561208.

The previous prime is 11123113333207. The next prime is 11123113333243. The reversal of 11123113333231 is 13233331132111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11123113333231 - 2¹⁵ = 11123113300463 is a prime.

It is a super-2 number, since 2×11123113333231² (a number of 27 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 11123113333231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123113333261) 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 7 ways as a sum of consecutive naturals, for example, 32857570 + ... + 33194368.

It is an arithmetic number, because the mean of its divisors is an integer number (1401346662400).

Almost surely, 2^{11123113333231} is an apocalyptic number.

11123113333231 is a deficient number, since it is larger than the sum of its proper divisors (87659965969).

11123113333231 is a wasteful number, since it uses less digits than its factorization.

11123113333231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596973.

The product of its digits is 2916, while the sum is 28.

Adding to 11123113333231 its reverse (13233331132111), we get a palindrome (24356444465342).

The spelling of 11123113333231 in words is "eleven trillion, one hundred twenty-three billion, one hundred thirteen million, three hundred thirty-three thousand, two hundred thirty-one".