320231541610073 has 2 divisors, whose sum is σ = 320231541610074. Its totient is φ = 320231541610072.

The previous prime is 320231541610033. The next prime is 320231541610087. The reversal of 320231541610073 is 370016145132023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173905092286864 + 146326449323209 = 13187308^2 + 12096547^2 .

It is a cyclic number.

It is not a de Polignac number, because 320231541610073 - 2¹² = 320231541605977 is a prime.

It is not a weakly prime, because it can be changed into another prime (320231541610033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160115770805036 + 160115770805037.

It is an arithmetic number, because the mean of its divisors is an integer number (160115770805037).

Almost surely, 2^{320231541610073} is an apocalyptic number.

It is an amenable number.

320231541610073 is a deficient number, since it is larger than the sum of its proper divisors (1).

320231541610073 is an equidigital number, since it uses as much as digits as its factorization.

320231541610073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

Adding to 320231541610073 its reverse (370016145132023), we get a palindrome (690247686742096).

The spelling of 320231541610073 in words is "three hundred twenty trillion, two hundred thirty-one billion, five hundred forty-one million, six hundred ten thousand, seventy-three".