1311441322 has 16 divisors (see below), whose sum is σ = 1980865800. Its totient is φ = 651168000.

The previous prime is 1311441311. The next prime is 1311441323. The reversal of 1311441322 is 2231441131.

It can be written as a sum of positive squares in 4 ways, for example, as 1304582161 + 6859161 = 36119^2 + 2619^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1311441293 and 1311441302.

It is not an unprimeable number, because it can be changed into a prime (1311441323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183822 + ... + 190822.

Almost surely, 2^1311441322 is an apocalyptic number.

1311441322 is a deficient number, since it is larger than the sum of its proper divisors (669424478).

1311441322 is a wasteful number, since it uses less digits than its factorization.

1311441322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7641.

The product of its digits is 576, while the sum is 22.

The square root of 1311441322 is about 36213.8277733796. The cubic root of 1311441322 is about 1094.5853247979.

Adding to 1311441322 its reverse (2231441131), we get a palindrome (3542882453).

The spelling of 1311441322 in words is "one billion, three hundred eleven million, four hundred forty-one thousand, three hundred twenty-two".