1344020321 has 8 divisors (see below), whose sum is σ = 1536431424. Its totient is φ = 1151711280.

The previous prime is 1344020317. The next prime is 1344020351. The reversal of 1344020321 is 1230204431.

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 1344020321 - 2² = 1344020317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1344020293 and 1344020302.

It is not an unprimeable number, because it can be changed into a prime (1344020311) 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 7 ways as a sum of consecutive naturals, for example, 5171 + ... + 52103.

It is an arithmetic number, because the mean of its divisors is an integer number (192053928).

Almost surely, 2^1344020321 is an apocalyptic number.

It is an amenable number.

1344020321 is a deficient number, since it is larger than the sum of its proper divisors (192411103).

1344020321 is an equidigital number, since it uses as much as digits as its factorization.

1344020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51031.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1344020321 is about 36660.8827089583. The cubic root of 1344020321 is about 1103.5752324389.

Adding to 1344020321 its reverse (1230204431), we get a palindrome (2574224752).

The spelling of 1344020321 in words is "one billion, three hundred forty-four million, twenty thousand, three hundred twenty-one".