11323113231 has 8 divisors (see below), whose sum is σ = 15105029760. Its totient is φ = 7544969432.

The previous prime is 11323113223. The next prime is 11323113407. The reversal of 11323113231 is 13231132311.

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 11323113231 - 2³ = 11323113223 is a prime.

It is a super-2 number, since 2×11323113231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11323113198 and 11323113207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11323113031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936171 + ... + 948188.

It is an arithmetic number, because the mean of its divisors is an integer number (1888128720).

Almost surely, 2^11323113231 is an apocalyptic number.

11323113231 is a deficient number, since it is larger than the sum of its proper divisors (3781916529).

11323113231 is a wasteful number, since it uses less digits than its factorization.

11323113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886365.

The product of its digits is 324, while the sum is 21.

Adding to 11323113231 its reverse (13231132311), we get a palindrome (24554245542).

The spelling of 11323113231 in words is "eleven billion, three hundred twenty-three million, one hundred thirteen thousand, two hundred thirty-one".