13231311322 has 4 divisors (see below), whose sum is σ = 19846966986. Its totient is φ = 6615655660.

The previous prime is 13231311253. The next prime is 13231311337. The reversal of 13231311322 is 22311313231.

13231311322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7432336521 + 5798974801 = 86211^2 + 76151^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13231311293 and 13231311302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3307827829 + ... + 3307827832.

Almost surely, 2^13231311322 is an apocalyptic number.

13231311322 is a deficient number, since it is larger than the sum of its proper divisors (6615655664).

13231311322 is an equidigital number, since it uses as much as digits as its factorization.

13231311322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6615655663.

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

Adding to 13231311322 its reverse (22311313231), we get a palindrome (35542624553).

The spelling of 13231311322 in words is "thirteen billion, two hundred thirty-one million, three hundred eleven thousand, three hundred twenty-two".