320310061541 has 2 divisors, whose sum is σ = 320310061542. Its totient is φ = 320310061540.

The previous prime is 320310061537. The next prime is 320310061583. The reversal of 320310061541 is 145160013023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316350002500 + 3960059041 = 562450^2 + 62929^2 .

It is an emirp because it is prime and its reverse (145160013023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320310061541 - 2² = 320310061537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320310061541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320310061241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160155030770 + 160155030771.

It is an arithmetic number, because the mean of its divisors is an integer number (160155030771).

Almost surely, 2^320310061541 is an apocalyptic number.

It is an amenable number.

320310061541 is a deficient number, since it is larger than the sum of its proper divisors (1).

320310061541 is an equidigital number, since it uses as much as digits as its factorization.

320310061541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 320310061541 its reverse (145160013023), we get a palindrome (465470074564).

The spelling of 320310061541 in words is "three hundred twenty billion, three hundred ten million, sixty-one thousand, five hundred forty-one".