320231231122073 has 2 divisors, whose sum is σ = 320231231122074. Its totient is φ = 320231231122072.

The previous prime is 320231231122039. The next prime is 320231231122111. The reversal of 320231231122073 is 370221132132023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313362680414809 + 6868550707264 = 17702053^2 + 2620792^2 .

It is a cyclic number.

It is not a de Polignac number, because 320231231122073 - 2²² = 320231226927769 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (320231131122073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160115615561036 + 160115615561037.

It is an arithmetic number, because the mean of its divisors is an integer number (160115615561037).

Almost surely, 2^{320231231122073} is an apocalyptic number.

It is an amenable number.

320231231122073 is a deficient number, since it is larger than the sum of its proper divisors (1).

320231231122073 is an equidigital number, since it uses as much as digits as its factorization.

320231231122073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 320231231122073 its reverse (370221132132023), we get a palindrome (690452363254096).

The spelling of 320231231122073 in words is "three hundred twenty trillion, two hundred thirty-one billion, two hundred thirty-one million, one hundred twenty-two thousand, seventy-three".