13321322312231 has 4 divisors (see below), whose sum is σ = 13321332967152. Its totient is φ = 13321311657312.

The previous prime is 13321322312167. The next prime is 13321322312239. The reversal of 13321322312231 is 13221322312331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13321322312231 - 2⁶ = 13321322312167 is a prime.

It is a super-2 number, since 2×13321322312231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13321322312194 and 13321322312203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321322312239) 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 3 ways as a sum of consecutive naturals, for example, 3157451 + ... + 6050796.

It is an arithmetic number, because the mean of its divisors is an integer number (3330333241788).

Almost surely, 2^{13321322312231} is an apocalyptic number.

13321322312231 is a deficient number, since it is larger than the sum of its proper divisors (10654921).

13321322312231 is an equidigital number, since it uses as much as digits as its factorization.

13321322312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10654920.

The product of its digits is 7776, while the sum is 29.

Adding to 13321322312231 its reverse (13221322312331), we get a palindrome (26542644624562).

The spelling of 13321322312231 in words is "thirteen trillion, three hundred twenty-one billion, three hundred twenty-two million, three hundred twelve thousand, two hundred thirty-one".