320011418861 has 2 divisors, whose sum is σ = 320011418862. Its totient is φ = 320011418860.

The previous prime is 320011418849. The next prime is 320011418983. The reversal of 320011418861 is 168814110023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297904189636 + 22107229225 = 545806^2 + 148685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320011418861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320011418801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160005709430 + 160005709431.

It is an arithmetic number, because the mean of its divisors is an integer number (160005709431).

Almost surely, 2^320011418861 is an apocalyptic number.

It is an amenable number.

320011418861 is a deficient number, since it is larger than the sum of its proper divisors (1).

320011418861 is an equidigital number, since it uses as much as digits as its factorization.

320011418861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 35.

Adding to 320011418861 its reverse (168814110023), we get a palindrome (488825528884).

The spelling of 320011418861 in words is "three hundred twenty billion, eleven million, four hundred eighteen thousand, eight hundred sixty-one".