1311344322 has 32 divisors (see below), whose sum is σ = 2655569664. Its totient is φ = 431667600.

The previous prime is 1311344311. The next prime is 1311344327. The reversal of 1311344322 is 2234431131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1311344292 and 1311344301.

It is not an unprimeable number, because it can be changed into a prime (1311344327) 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 15 ways as a sum of consecutive naturals, for example, 161893 + ... + 169799.

It is an arithmetic number, because the mean of its divisors is an integer number (82986552).

Almost surely, 2^1311344322 is an apocalyptic number.

1311344322 is an abundant number, since it is smaller than the sum of its proper divisors (1344225342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311344322 is a wasteful number, since it uses less digits than its factorization.

1311344322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8254.

The product of its digits is 1728, while the sum is 24.

The square root of 1311344322 is about 36212.4884811856. The cubic root of 1311344322 is about 1094.5583373421.

Adding to 1311344322 its reverse (2234431131), we get a palindrome (3545775453).

The spelling of 1311344322 in words is "one billion, three hundred eleven million, three hundred forty-four thousand, three hundred twenty-two".