1313443356 has 12 divisors (see below), whose sum is σ = 3064701192. Its totient is φ = 437814448.

The previous prime is 1313443291. The next prime is 1313443357. The reversal of 1313443356 is 6533443131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313443357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54726795 + ... + 54726818.

It is an arithmetic number, because the mean of its divisors is an integer number (255391766).

Almost surely, 2^1313443356 is an apocalyptic number.

It is an amenable number.

1313443356 is an abundant number, since it is smaller than the sum of its proper divisors (1751257836).

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

1313443356 is a wasteful number, since it uses less digits than its factorization.

1313443356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109453620 (or 109453618 counting only the distinct ones).

The product of its digits is 38880, while the sum is 33.

The square root of 1313443356 is about 36241.4590765880. The cubic root of 1313443356 is about 1095.1420361612.

Adding to 1313443356 its reverse (6533443131), we get a palindrome (7846886487).

The spelling of 1313443356 in words is "one billion, three hundred thirteen million, four hundred forty-three thousand, three hundred fifty-six".