1368321443 has 4 divisors (see below), whose sum is σ = 1387593648. Its totient is φ = 1349049240.

The previous prime is 1368321433. The next prime is 1368321467. The reversal of 1368321443 is 3441238631.

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 1368321443 - 2¹² = 1368317347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368321433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9635996 + ... + 9636137.

It is an arithmetic number, because the mean of its divisors is an integer number (346898412).

Almost surely, 2^1368321443 is an apocalyptic number.

1368321443 is a deficient number, since it is larger than the sum of its proper divisors (19272205).

1368321443 is an equidigital number, since it uses as much as digits as its factorization.

1368321443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19272204.

The product of its digits is 41472, while the sum is 35.

The square root of 1368321443 is about 36990.8291742697. The cubic root of 1368321443 is about 1110.1867615841.

The spelling of 1368321443 in words is "one billion, three hundred sixty-eight million, three hundred twenty-one thousand, four hundred forty-three".