1313044443 has 6 divisors (see below), whose sum is σ = 1896619764. Its totient is φ = 875362956.

The previous prime is 1313044441. The next prime is 1313044483. The reversal of 1313044443 is 3444403131.

It is not a de Polignac number, because 1313044443 - 2¹ = 1313044441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313044441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72946905 + ... + 72946922.

It is an arithmetic number, because the mean of its divisors is an integer number (316103294).

Almost surely, 2^1313044443 is an apocalyptic number.

1313044443 is a deficient number, since it is larger than the sum of its proper divisors (583575321).

1313044443 is a wasteful number, since it uses less digits than its factorization.

1313044443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145893833 (or 145893830 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 1313044443 is about 36235.9551136713. The cubic root of 1313044443 is about 1095.0311544273.

Adding to 1313044443 its reverse (3444403131), we get a palindrome (4757447574).

The spelling of 1313044443 in words is "one billion, three hundred thirteen million, forty-four thousand, four hundred forty-three".