323131313111 has 2 divisors, whose sum is σ = 323131313112. Its totient is φ = 323131313110.

The previous prime is 323131313107. The next prime is 323131313171. The reversal of 323131313111 is 111313131323.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 323131313111 - 2² = 323131313107 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323131313171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161565656555 + 161565656556.

It is an arithmetic number, because the mean of its divisors is an integer number (161565656556).

Almost surely, 2^323131313111 is an apocalyptic number.

323131313111 is a deficient number, since it is larger than the sum of its proper divisors (1).

323131313111 is an equidigital number, since it uses as much as digits as its factorization.

323131313111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486, while the sum is 23.

Adding to 323131313111 its reverse (111313131323), we get a palindrome (434444444434).

The spelling of 323131313111 in words is "three hundred twenty-three billion, one hundred thirty-one million, three hundred thirteen thousand, one hundred eleven".