311324012 has 6 divisors (see below), whose sum is σ = 544817028. Its totient is φ = 155662004.

The previous prime is 311324011. The next prime is 311324017. The reversal of 311324012 is 210423113.

It is a super-2 number, since 2×311324012² = 193845280895552288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311324011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38915498 + ... + 38915505.

It is an arithmetic number, because the mean of its divisors is an integer number (90802838).

Almost surely, 2^311324012 is an apocalyptic number.

It is an amenable number.

311324012 is a deficient number, since it is larger than the sum of its proper divisors (233493016).

311324012 is a wasteful number, since it uses less digits than its factorization.

311324012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77831007 (or 77831005 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 311324012 is about 17644.3762145336. The cubic root of 311324012 is about 677.7521014570.

Adding to 311324012 its reverse (210423113), we get a palindrome (521747125).

The spelling of 311324012 in words is "three hundred eleven million, three hundred twenty-four thousand, twelve".