1311343 has 8 divisors (see below), whose sum is σ = 1446480. Its totient is φ = 1178880.

The previous prime is 1311341. The next prime is 1311353. The reversal of 1311343 is 3431131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311343 - 2¹ = 1311341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453 + ... + 1681.

It is an arithmetic number, because the mean of its divisors is an integer number (180810).

2^1311343 is an apocalyptic number.

1311343 is a deficient number, since it is larger than the sum of its proper divisors (135137).

1311343 is a wasteful number, since it uses less digits than its factorization.

1311343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337.

The product of its digits is 108, while the sum is 16.

The square root of 1311343 is about 1145.1388562091. The cubic root of 1311343 is about 109.4557969524.

Adding to 1311343 its reverse (3431131), we get a palindrome (4742474).

The spelling of 1311343 in words is "one million, three hundred eleven thousand, three hundred forty-three".