1320345001 has 8 divisors (see below), whose sum is σ = 1398975624. Its totient is φ = 1241821440.

The previous prime is 1320344999. The next prime is 1320345049. The reversal of 1320345001 is 1005430231.

It can be written as a sum of positive squares in 4 ways, for example, as 603979776 + 716365225 = 24576^2 + 26765^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320345001 - 2¹ = 1320344999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1320345001.

It is not an unprimeable number, because it can be changed into a prime (1320315001) 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, 630 + ... + 51391.

It is an arithmetic number, because the mean of its divisors is an integer number (174871953).

Almost surely, 2^1320345001 is an apocalyptic number.

It is an amenable number.

1320345001 is a deficient number, since it is larger than the sum of its proper divisors (78630623).

1320345001 is a wasteful number, since it uses less digits than its factorization.

1320345001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53531.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1320345001 is about 36336.5518589753. The cubic root of 1320345001 is about 1097.0568710377.

Adding to 1320345001 its reverse (1005430231), we get a palindrome (2325775232).

The spelling of 1320345001 in words is "one billion, three hundred twenty million, three hundred forty-five thousand, one".