313321213123 has 2 divisors, whose sum is σ = 313321213124. Its totient is φ = 313321213122.

The previous prime is 313321213111. The next prime is 313321213201. The reversal of 313321213123 is 321312123313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313321213123 - 2³³ = 304731278531 is a prime.

It is not a weakly prime, because it can be changed into another prime (313321283123) 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, 156660606561 + 156660606562.

It is an arithmetic number, because the mean of its divisors is an integer number (156660606562).

Almost surely, 2^313321213123 is an apocalyptic number.

313321213123 is a deficient number, since it is larger than the sum of its proper divisors (1).

313321213123 is an equidigital number, since it uses as much as digits as its factorization.

313321213123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 25.

Adding to 313321213123 its reverse (321312123313), we get a palindrome (634633336436).

The spelling of 313321213123 in words is "three hundred thirteen billion, three hundred twenty-one million, two hundred thirteen thousand, one hundred twenty-three".