311113312020193 has 2 divisors, whose sum is σ = 311113312020194. Its totient is φ = 311113312020192.

The previous prime is 311113312020109. The next prime is 311113312020331. The reversal of 311113312020193 is 391020213311113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209621952718929 + 101491359301264 = 14478327^2 + 10074292^2 .

It is a cyclic number.

It is not a de Polignac number, because 311113312020193 - 2⁹ = 311113312019681 is a prime.

It is not a weakly prime, because it can be changed into another prime (311113312026193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155556656010096 + 155556656010097.

It is an arithmetic number, because the mean of its divisors is an integer number (155556656010097).

Almost surely, 2^{311113312020193} is an apocalyptic number.

It is an amenable number.

311113312020193 is a deficient number, since it is larger than the sum of its proper divisors (1).

311113312020193 is an equidigital number, since it uses as much as digits as its factorization.

311113312020193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The spelling of 311113312020193 in words is "three hundred eleven trillion, one hundred thirteen billion, three hundred twelve million, twenty thousand, one hundred ninety-three".