321343112311 has 16 divisors (see below), whose sum is σ = 352767542400. Its totient is φ = 290900652768.

The previous prime is 321343112303. The next prime is 321343112369. The reversal of 321343112311 is 113211343123.

It is a cyclic number.

It is not a de Polignac number, because 321343112311 - 2³ = 321343112303 is a prime.

It is a super-2 number, since 2×321343112311² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321343112611) 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 in 15 ways as a sum of consecutive naturals, for example, 178581 + ... + 821326.

It is an arithmetic number, because the mean of its divisors is an integer number (22047971400).

Almost surely, 2^321343112311 is an apocalyptic number.

321343112311 is a deficient number, since it is larger than the sum of its proper divisors (31424430089).

321343112311 is a wasteful number, since it uses less digits than its factorization.

321343112311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000398.

The product of its digits is 1296, while the sum is 25.

Adding to 321343112311 its reverse (113211343123), we get a palindrome (434554455434).

The spelling of 321343112311 in words is "three hundred twenty-one billion, three hundred forty-three million, one hundred twelve thousand, three hundred eleven".