320216682113 has 2 divisors, whose sum is σ = 320216682114. Its totient is φ = 320216682112.

The previous prime is 320216682103. The next prime is 320216682119. The reversal of 320216682113 is 311286612023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304182031729 + 16034650384 = 551527^2 + 126628^2 .

It is a cyclic number.

It is not a de Polignac number, because 320216682113 - 2⁸ = 320216681857 is a prime.

It is not a weakly prime, because it can be changed into another prime (320216682119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160108341056 + 160108341057.

It is an arithmetic number, because the mean of its divisors is an integer number (160108341057).

Almost surely, 2^320216682113 is an apocalyptic number.

It is an amenable number.

320216682113 is a deficient number, since it is larger than the sum of its proper divisors (1).

320216682113 is an equidigital number, since it uses as much as digits as its factorization.

320216682113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 320216682113 in words is "three hundred twenty billion, two hundred sixteen million, six hundred eighty-two thousand, one hundred thirteen".