320120320001 has 2 divisors, whose sum is σ = 320120320002. Its totient is φ = 320120320000.

The previous prime is 320120319997. The next prime is 320120320031. The reversal of 320120320001 is 100023021023.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313135372225 + 6984947776 = 559585^2 + 83576^2 .

It is a cyclic number.

It is not a de Polignac number, because 320120320001 - 2² = 320120319997 is a prime.

It is not a weakly prime, because it can be changed into another prime (320120320031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160060160000 + 160060160001.

It is an arithmetic number, because the mean of its divisors is an integer number (160060160001).

Almost surely, 2^320120320001 is an apocalyptic number.

It is an amenable number.

320120320001 is a deficient number, since it is larger than the sum of its proper divisors (1).

320120320001 is an equidigital number, since it uses as much as digits as its factorization.

320120320001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 320120320001 its reverse (100023021023), we get a palindrome (420143341024).

The spelling of 320120320001 in words is "three hundred twenty billion, one hundred twenty million, three hundred twenty thousand, one".