320231231122111 has 2 divisors, whose sum is σ = 320231231122112. Its totient is φ = 320231231122110.

The previous prime is 320231231122073. The next prime is 320231231122141. The reversal of 320231231122111 is 111221132132023.

It is a strong prime.

It is an emirp because it is prime and its reverse (111221132132023) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320231231122111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320231231122141) 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, 160115615561055 + 160115615561056.

It is an arithmetic number, because the mean of its divisors is an integer number (160115615561056).

Almost surely, 2^{320231231122111} is an apocalyptic number.

320231231122111 is a deficient number, since it is larger than the sum of its proper divisors (1).

320231231122111 is an equidigital number, since it uses as much as digits as its factorization.

320231231122111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 320231231122111 its reverse (111221132132023), we get a palindrome (431452363254134).

The spelling of 320231231122111 in words is "three hundred twenty trillion, two hundred thirty-one billion, two hundred thirty-one million, one hundred twenty-two thousand, one hundred eleven".