1313443443 has 24 divisors (see below), whose sum is σ = 2003452528. Its totient is φ = 760720896.

The previous prime is 1313443441. The next prime is 1313443489. The reversal of 1313443443 is 3443443131.

1313443443 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 1313443443 - 2¹ = 1313443441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313443443.

It is not an unprimeable number, because it can be changed into a prime (1313443441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46996 + ... + 69537.

Almost surely, 2^1313443443 is an apocalyptic number.

1313443443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1313443443 is a deficient number, since it is larger than the sum of its proper divisors (690009085).

1313443443 is a wasteful number, since it uses less digits than its factorization.

1313443443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116583 (or 116566 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

The square root of 1313443443 is about 36241.4602768707. The cubic root of 1313443443 is about 1095.1420603413.

Adding to 1313443443 its reverse (3443443131), we get a palindrome (4756886574).

The spelling of 1313443443 in words is "one billion, three hundred thirteen million, four hundred forty-three thousand, four hundred forty-three".