311223304311 has 8 divisors (see below), whose sum is σ = 415070523264. Its totient is φ = 207429144120.

The previous prime is 311223304307. The next prime is 311223304313. The reversal of 311223304311 is 113403322113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 311223304311 - 2² = 311223304307 is a prime.

It is a super-2 number, since 2×311223304311² (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 (311223304313) 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 7 ways as a sum of consecutive naturals, for example, 13251001 + ... + 13274466.

It is an arithmetic number, because the mean of its divisors is an integer number (51883815408).

Almost surely, 2^311223304311 is an apocalyptic number.

311223304311 is a deficient number, since it is larger than the sum of its proper divisors (103847218953).

311223304311 is a wasteful number, since it uses less digits than its factorization.

311223304311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26529381.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 311223304311 its reverse (113403322113), we get a palindrome (424626626424).

The spelling of 311223304311 in words is "three hundred eleven billion, two hundred twenty-three million, three hundred four thousand, three hundred eleven".