320331112120111 has 2 divisors, whose sum is σ = 320331112120112. Its totient is φ = 320331112120110.

The previous prime is 320331112120043. The next prime is 320331112120189. The reversal of 320331112120111 is 111021211133023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320331112120111 - 2²³ = 320331103731503 is a prime.

It is a super-2 number, since 2×320331112120111² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320331112120211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160165556060055 + 160165556060056.

It is an arithmetic number, because the mean of its divisors is an integer number (160165556060056).

Almost surely, 2^{320331112120111} is an apocalyptic number.

320331112120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

320331112120111 is an equidigital number, since it uses as much as digits as its factorization.

320331112120111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 320331112120111 its reverse (111021211133023), we get a palindrome (431352323253134).

The spelling of 320331112120111 in words is "three hundred twenty trillion, three hundred thirty-one billion, one hundred twelve million, one hundred twenty thousand, one hundred eleven".