1311444441 has 12 divisors (see below), whose sum is σ = 1898835120. Its totient is φ = 872207160.

The previous prime is 1311444437. The next prime is 1311444517. The reversal of 1311444441 is 1444441131.

1311444441 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1311444441 - 2² = 1311444437 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311444241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170115 + ... + 177656.

It is an arithmetic number, because the mean of its divisors is an integer number (158236260).

Almost surely, 2^1311444441 is an apocalyptic number.

It is an amenable number.

1311444441 is a deficient number, since it is larger than the sum of its proper divisors (587390679).

1311444441 is a wasteful number, since it uses less digits than its factorization.

1311444441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348196 (or 348193 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 1311444441 is about 36213.8708370149. The cubic root of 1311444441 is about 1094.5861925477.

Adding to 1311444441 its reverse (1444441131), we get a palindrome (2755885572).

The spelling of 1311444441 in words is "one billion, three hundred eleven million, four hundred forty-four thousand, four hundred forty-one".