320935981841 has 2 divisors, whose sum is σ = 320935981842. Its totient is φ = 320935981840.

The previous prime is 320935981811. The next prime is 320935981967. The reversal of 320935981841 is 148189539023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 291659403025 + 29276578816 = 540055^2 + 171104^2 .

It is a cyclic number.

It is not a de Polignac number, because 320935981841 - 2²⁶ = 320868872977 is a prime.

It is not a weakly prime, because it can be changed into another prime (320935981811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160467990920 + 160467990921.

It is an arithmetic number, because the mean of its divisors is an integer number (160467990921).

Almost surely, 2^320935981841 is an apocalyptic number.

It is an amenable number.

320935981841 is a deficient number, since it is larger than the sum of its proper divisors (1).

320935981841 is an equidigital number, since it uses as much as digits as its factorization.

320935981841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 320935981841 in words is "three hundred twenty billion, nine hundred thirty-five million, nine hundred eighty-one thousand, eight hundred forty-one".