311323412 has 12 divisors (see below), whose sum is σ = 554050560. Its totient is φ = 153023256.

The previous prime is 311323399. The next prime is 311323429. The reversal of 311323412 is 214323113.

It is a congruent number.

It is an unprimeable number.

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, 659348 + ... + 659819.

It is an arithmetic number, because the mean of its divisors is an integer number (46170880).

Almost surely, 2^311323412 is an apocalyptic number.

It is an amenable number.

311323412 is a deficient number, since it is larger than the sum of its proper divisors (242727148).

311323412 is a wasteful number, since it uses less digits than its factorization.

311323412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319230 (or 1319228 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 311323412 is about 17644.3592119408. The cubic root of 311323412 is about 677.7516660569.

Adding to 311323412 its reverse (214323113), we get a palindrome (525646525).

The spelling of 311323412 in words is "three hundred eleven million, three hundred twenty-three thousand, four hundred twelve".