1321343 has 8 divisors (see below), whose sum is σ = 1364688. Its totient is φ = 1278784.

The previous prime is 1321319. The next prime is 1321349. The reversal of 1321343 is 3431231.

It is a happy number.

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

It is not a de Polignac number, because 1321343 - 2¹² = 1317247 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321349) 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, 5555 + ... + 5787.

It is an arithmetic number, because the mean of its divisors is an integer number (170586).

2^1321343 is an apocalyptic number.

1321343 is a deficient number, since it is larger than the sum of its proper divisors (43345).

1321343 is a wasteful number, since it uses less digits than its factorization.

1321343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393.

The product of its digits is 216, while the sum is 17.

The square root of 1321343 is about 1149.4968464507. The cubic root of 1321343 is about 109.7333209399.

Adding to 1321343 its reverse (3431231), we get a palindrome (4752574).

The spelling of 1321343 in words is "one million, three hundred twenty-one thousand, three hundred forty-three".