320210312111 has 2 divisors, whose sum is σ = 320210312112. Its totient is φ = 320210312110.

The previous prime is 320210312089. The next prime is 320210312113. The reversal of 320210312111 is 111213012023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320210312111 - 2¹⁰ = 320210311087 is a prime.

Together with 320210312113, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320210312111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320210312113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160105156055 + 160105156056.

It is an arithmetic number, because the mean of its divisors is an integer number (160105156056).

Almost surely, 2^320210312111 is an apocalyptic number.

320210312111 is a deficient number, since it is larger than the sum of its proper divisors (1).

320210312111 is an equidigital number, since it uses as much as digits as its factorization.

320210312111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 320210312111 its reverse (111213012023), we get a palindrome (431423324134).

The spelling of 320210312111 in words is "three hundred twenty billion, two hundred ten million, three hundred twelve thousand, one hundred eleven".