311431324 has 6 divisors (see below), whose sum is σ = 545004824. Its totient is φ = 155715660.

The previous prime is 311431321. The next prime is 311431349. The reversal of 311431324 is 423134113.

It is a junction number, because it is equal to n+sod(n) for n = 311431295 and 311431304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311431321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38928912 + ... + 38928919.

Almost surely, 2^311431324 is an apocalyptic number.

It is an amenable number.

311431324 is a deficient number, since it is larger than the sum of its proper divisors (233573500).

311431324 is a wasteful number, since it uses less digits than its factorization.

311431324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77857835 (or 77857833 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 311431324 is about 17647.4169214647. The cubic root of 311431324 is about 677.8299652212.

Adding to 311431324 its reverse (423134113), we get a palindrome (734565437).

The spelling of 311431324 in words is "three hundred eleven million, four hundred thirty-one thousand, three hundred twenty-four".