1343320331 has 4 divisors (see below), whose sum is σ = 1422339192. Its totient is φ = 1264301472.

The previous prime is 1343320309. The next prime is 1343320333. The reversal of 1343320331 is 1330233431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1343320331 - 2¹⁴ = 1343303947 is a prime.

It is a super-2 number, since 2×1343320331² = 3609019023355899122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1343320297 and 1343320306.

It is not an unprimeable number, because it can be changed into a prime (1343320333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39509405 + ... + 39509438.

It is an arithmetic number, because the mean of its divisors is an integer number (355584798).

Almost surely, 2^1343320331 is an apocalyptic number.

1343320331 is a deficient number, since it is larger than the sum of its proper divisors (79018861).

1343320331 is an equidigital number, since it uses as much as digits as its factorization.

1343320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79018860.

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 1343320331 is about 36651.3346414561. The cubic root of 1343320331 is about 1103.3836118801.

Adding to 1343320331 its reverse (1330233431), we get a palindrome (2673553762).

The spelling of 1343320331 in words is "one billion, three hundred forty-three million, three hundred twenty thousand, three hundred thirty-one".