11331320323231 has 8 divisors (see below), whose sum is σ = 11462807070000. Its totient is φ = 11199926210880.

The previous prime is 11331320323189. The next prime is 11331320323277. The reversal of 11331320323231 is 13232302313311.

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 11331320323231 - 2¹⁵ = 11331320290463 is a prime.

It is a super-2 number, since 2×11331320323231² (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 11331320323231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331320324231) 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, 22912525 + ... + 23401846.

It is an arithmetic number, because the mean of its divisors is an integer number (1432850883750).

Almost surely, 2^{11331320323231} is an apocalyptic number.

11331320323231 is a deficient number, since it is larger than the sum of its proper divisors (131486746769).

11331320323231 is an equidigital number, since it uses as much as digits as its factorization.

11331320323231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46317209.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 11331320323231 its reverse (13232302313311), we get a palindrome (24563622636542).

The spelling of 11331320323231 in words is "eleven trillion, three hundred thirty-one billion, three hundred twenty million, three hundred twenty-three thousand, two hundred thirty-one".