320321320001 has 8 divisors (see below), whose sum is σ = 328986236520. Its totient is φ = 311656802688.

The previous prime is 320321319971. The next prime is 320321320003. The reversal of 320321320001 is 100023123023.

It can be written as a sum of positive squares in 4 ways, for example, as 7617798400 + 312703521601 = 87280^2 + 559199^2 .

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 320321320001 - 2⁶ = 320321319937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320321320003) 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, 2290355 + ... + 2426183.

It is an arithmetic number, because the mean of its divisors is an integer number (41123279565).

Almost surely, 2^320321320001 is an apocalyptic number.

It is an amenable number.

320321320001 is a deficient number, since it is larger than the sum of its proper divisors (8664916519).

320321320001 is a wasteful number, since it uses less digits than its factorization.

320321320001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199603.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 320321320001 its reverse (100023123023), we get a palindrome (420344443024).

The spelling of 320321320001 in words is "three hundred twenty billion, three hundred twenty-one million, three hundred twenty thousand, one".