1344321331 has 4 divisors (see below), whose sum is σ = 1345335712. Its totient is φ = 1343306952.

The previous prime is 1344321287. The next prime is 1344321347. The reversal of 1344321331 is 1331234431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1331234431 = 8941 ⋅148891.

It is a cyclic number.

It is not a de Polignac number, because 1344321331 - 2¹¹ = 1344319283 is a prime.

It is a super-2 number, since 2×1344321331² = 3614399681963223122, 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 = 1344321296 and 1344321305.

It is not an unprimeable number, because it can be changed into a prime (1344301331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505200 + ... + 507853.

It is an arithmetic number, because the mean of its divisors is an integer number (336333928).

Almost surely, 2^1344321331 is an apocalyptic number.

1344321331 is a deficient number, since it is larger than the sum of its proper divisors (1014381).

1344321331 is a wasteful number, since it uses less digits than its factorization.

1344321331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014380.

The product of its digits is 2592, while the sum is 25.

The square root of 1344321331 is about 36664.9878085347. The cubic root of 1344321331 is about 1103.6576127372.

Adding to 1344321331 its reverse (1331234431), we get a palindrome (2675555762).

The spelling of 1344321331 in words is "one billion, three hundred forty-four million, three hundred twenty-one thousand, three hundred thirty-one".