13311223231 has 8 divisors (see below), whose sum is σ = 13508019200. Its totient is φ = 13115726712.

The previous prime is 13311223229. The next prime is 13311223259. The reversal of 13311223231 is 13232211331.

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 13311223231 - 2¹ = 13311223229 is a prime.

It is a super-2 number, since 2×13311223231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311223201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304215 + ... + 345208.

It is an arithmetic number, because the mean of its divisors is an integer number (1688502400).

Almost surely, 2^13311223231 is an apocalyptic number.

13311223231 is a deficient number, since it is larger than the sum of its proper divisors (196795969).

13311223231 is a wasteful number, since it uses less digits than its factorization.

13311223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649725.

The product of its digits is 648, while the sum is 22.

Adding to 13311223231 its reverse (13232211331), we get a palindrome (26543434562).

The spelling of 13311223231 in words is "thirteen billion, three hundred eleven million, two hundred twenty-three thousand, two hundred thirty-one".