323312121311 has 4 divisors (see below), whose sum is σ = 323313259032. Its totient is φ = 323310983592.

The previous prime is 323312121281. The next prime is 323312121313. The reversal of 323312121311 is 113121213323.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 113121213323 = 17 ⋅6654189019.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323312121311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323312121313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258905 + ... + 844781.

It is an arithmetic number, because the mean of its divisors is an integer number (80828314758).

Almost surely, 2^323312121311 is an apocalyptic number.

323312121311 is a deficient number, since it is larger than the sum of its proper divisors (1137721).

323312121311 is an equidigital number, since it uses as much as digits as its factorization.

323312121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137720.

The product of its digits is 648, while the sum is 23.

Adding to 323312121311 its reverse (113121213323), we get a palindrome (436433334634).

The spelling of 323312121311 in words is "three hundred twenty-three billion, three hundred twelve million, one hundred twenty-one thousand, three hundred eleven".