1311444322 has 16 divisors (see below), whose sum is σ = 2059525440. Its totient is φ = 625480912.

The previous prime is 1311444301. The next prime is 1311444331. The reversal of 1311444322 is 2234441131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131398 + ... + 141025.

It is an arithmetic number, because the mean of its divisors is an integer number (128720340).

Almost surely, 2^1311444322 is an apocalyptic number.

1311444322 is a deficient number, since it is larger than the sum of its proper divisors (748081118).

1311444322 is a wasteful number, since it uses less digits than its factorization.

1311444322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272537.

The product of its digits is 2304, while the sum is 25.

The square root of 1311444322 is about 36213.8691939980. The cubic root of 1311444322 is about 1094.5861594403.

Adding to 1311444322 its reverse (2234441131), we get a palindrome (3545885453).

The spelling of 1311444322 in words is "one billion, three hundred eleven million, four hundred forty-four thousand, three hundred twenty-two".