320520001 has 8 divisors (see below), whose sum is σ = 328936608. Its totient is φ = 312132000.

The previous prime is 320519993. The next prime is 320520007. The reversal of 320520001 is 100025023.

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 320520001 - 2³ = 320519993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320520007) 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, 16566 + ... + 30256.

It is an arithmetic number, because the mean of its divisors is an integer number (41117076).

Almost surely, 2^320520001 is an apocalyptic number.

It is an amenable number.

320520001 is a deficient number, since it is larger than the sum of its proper divisors (8416607).

320520001 is a wasteful number, since it uses less digits than its factorization.

320520001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14303.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 320520001 is about 17903.0723899559. The cubic root of 320520001 is about 684.3606736671.

Adding to 320520001 its reverse (100025023), we get a palindrome (420545024).

The spelling of 320520001 in words is "three hundred twenty million, five hundred twenty thousand, one".