313212330121 has 12 divisors (see below), whose sum is σ = 333804238768. Its totient is φ = 293827770432.

The previous prime is 313212330113. The next prime is 313212330161. The reversal of 313212330121 is 121033212313.

It is not a de Polignac number, because 313212330121 - 2³ = 313212330113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313212330092 and 313212330101.

It is not an unprimeable number, because it can be changed into a prime (313212330161) 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 in 11 ways as a sum of consecutive naturals, for example, 1676391 + ... + 1853836.

Almost surely, 2^313212330121 is an apocalyptic number.

It is an amenable number.

313212330121 is a deficient number, since it is larger than the sum of its proper divisors (20591908647).

313212330121 is a wasteful number, since it uses less digits than its factorization.

313212330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530568 (or 3530551 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 313212330121 its reverse (121033212313), we get a palindrome (434245542434).

The spelling of 313212330121 in words is "three hundred thirteen billion, two hundred twelve million, three hundred thirty thousand, one hundred twenty-one".