11321031123 has 16 divisors (see below), whose sum is σ = 16773988000. Its totient is φ = 7546413600.

The previous prime is 11321031121. The next prime is 11321031131. The reversal of 11321031123 is 32113012311.

11321031123 is a `hidden beast` number, since 11 + 321 + 0 + 311 + 23 = 666.

11321031123 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 11321031123 - 2¹ = 11321031121 is a prime.

It is a super-3 number, since 3×11321031123³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11321031096 and 11321031105.

It is not an unprimeable number, because it can be changed into a prime (11321031121) 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 15 ways as a sum of consecutive naturals, for example, 246153 + ... + 288501.

It is an arithmetic number, because the mean of its divisors is an integer number (1048374250).

Almost surely, 2^11321031123 is an apocalyptic number.

11321031123 is a deficient number, since it is larger than the sum of its proper divisors (5452956877).

11321031123 is an equidigital number, since it uses as much as digits as its factorization.

11321031123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52259 (or 52253 counting only the distinct ones).

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

Adding to 11321031123 its reverse (32113012311), we get a palindrome (43434043434).

The spelling of 11321031123 in words is "eleven billion, three hundred twenty-one million, thirty-one thousand, one hundred twenty-three".