320130331111 has 2 divisors, whose sum is σ = 320130331112. Its totient is φ = 320130331110.

The previous prime is 320130331109. The next prime is 320130331123. The reversal of 320130331111 is 111133031023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320130331111 - 2¹ = 320130331109 is a prime.

Together with 320130331109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320130331211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160065165555 + 160065165556.

It is an arithmetic number, because the mean of its divisors is an integer number (160065165556).

Almost surely, 2^320130331111 is an apocalyptic number.

320130331111 is a deficient number, since it is larger than the sum of its proper divisors (1).

320130331111 is an equidigital number, since it uses as much as digits as its factorization.

320130331111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 320130331111 its reverse (111133031023), we get a palindrome (431263362134).

The spelling of 320130331111 in words is "three hundred twenty billion, one hundred thirty million, three hundred thirty-one thousand, one hundred eleven".