320006139773 has 2 divisors, whose sum is σ = 320006139774. Its totient is φ = 320006139772.

The previous prime is 320006139757. The next prime is 320006139857. The reversal of 320006139773 is 377931600023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253171998244 + 66834141529 = 503162^2 + 258523^2 .

It is a cyclic number.

It is not a de Polignac number, because 320006139773 - 2⁴ = 320006139757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 320006139773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320006139073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160003069886 + 160003069887.

It is an arithmetic number, because the mean of its divisors is an integer number (160003069887).

Almost surely, 2^320006139773 is an apocalyptic number.

It is an amenable number.

320006139773 is a deficient number, since it is larger than the sum of its proper divisors (1).

320006139773 is an equidigital number, since it uses as much as digits as its factorization.

320006139773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 41.

Adding to 320006139773 its reverse (377931600023), we get a palindrome (697937739796).

The spelling of 320006139773 in words is "three hundred twenty billion, six million, one hundred thirty-nine thousand, seven hundred seventy-three".