31313123323 has 2 divisors, whose sum is σ = 31313123324. Its totient is φ = 31313123322.

The previous prime is 31313123321. The next prime is 31313123339. The reversal of 31313123323 is 32332131313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31313123323 - 2¹ = 31313123321 is a prime.

Together with 31313123321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31313123321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656561661 + 15656561662.

It is an arithmetic number, because the mean of its divisors is an integer number (15656561662).

Almost surely, 2^31313123323 is an apocalyptic number.

31313123323 is a deficient number, since it is larger than the sum of its proper divisors (1).

31313123323 is an equidigital number, since it uses as much as digits as its factorization.

31313123323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 25.

Adding to 31313123323 its reverse (32332131313), we get a palindrome (63645254636).

The spelling of 31313123323 in words is "thirty-one billion, three hundred thirteen million, one hundred twenty-three thousand, three hundred twenty-three".