311431324312 has 16 divisors (see below), whose sum is σ = 602770305600. Its totient is φ = 150692576160.

The previous prime is 311431324297. The next prime is 311431324313. The reversal of 311431324312 is 213423134113.

It is a super-2 number, since 2×311431324312² (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 (311431324313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627885487 + ... + 627885982.

It is an arithmetic number, because the mean of its divisors is an integer number (37673144100).

Almost surely, 2^311431324312 is an apocalyptic number.

It is an amenable number.

311431324312 is a deficient number, since it is larger than the sum of its proper divisors (291338981288).

311431324312 is a wasteful number, since it uses less digits than its factorization.

311431324312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255771506 (or 1255771502 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

Adding to 311431324312 its reverse (213423134113), we get a palindrome (524854458425).

The spelling of 311431324312 in words is "three hundred eleven billion, four hundred thirty-one million, three hundred twenty-four thousand, three hundred twelve".