1320443411 has 8 divisors (see below), whose sum is σ = 1509314400. Its totient is φ = 1131631488.

The previous prime is 1320443389. The next prime is 1320443413. The reversal of 1320443411 is 1143440231.

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 1320443411 - 2¹⁴ = 1320427027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320443413) 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, 55355 + ... + 75531.

It is an arithmetic number, because the mean of its divisors is an integer number (188664300).

Almost surely, 2^1320443411 is an apocalyptic number.

1320443411 is a deficient number, since it is larger than the sum of its proper divisors (188870989).

1320443411 is an equidigital number, since it uses as much as digits as its factorization.

1320443411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29533.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1320443411 is about 36337.9059798442. The cubic root of 1320443411 is about 1097.0841262082.

Adding to 1320443411 its reverse (1143440231), we get a palindrome (2463883642).

The spelling of 1320443411 in words is "one billion, three hundred twenty million, four hundred forty-three thousand, four hundred eleven".