11321213232231 has 48 divisors (see below), whose sum is σ = 19800640641600. Its totient is φ = 6084934631424.

The previous prime is 11321213232151. The next prime is 11321213232253. The reversal of 11321213232231 is 13223231212311.

11321213232231 is a `hidden beast` number, since 1 + 1 + 321 + 2 + 13 + 2 + 322 + 3 + 1 = 666.

It is not a de Polignac number, because 11321213232231 - 2¹¹ = 11321213230183 is a prime.

It is a super-2 number, since 2×11321213232231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11321213232195 and 11321213232204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321213232271) 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 47 ways as a sum of consecutive naturals, for example, 1561626 + ... + 5008103.

It is an arithmetic number, because the mean of its divisors is an integer number (412513346700).

Almost surely, 2^{11321213232231} is an apocalyptic number.

11321213232231 is a deficient number, since it is larger than the sum of its proper divisors (8479427409369).

11321213232231 is a wasteful number, since it uses less digits than its factorization.

11321213232231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6571368 (or 6571365 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 11321213232231 its reverse (13223231212311), we get a palindrome (24544444444542).

The spelling of 11321213232231 in words is "eleven trillion, three hundred twenty-one billion, two hundred thirteen million, two hundred thirty-two thousand, two hundred thirty-one".