311121412 has 24 divisors (see below), whose sum is σ = 622690880. Its totient is φ = 133241760.

The previous prime is 311121379. The next prime is 311121413. The reversal of 311121412 is 214121113.

It is not an unprimeable number, because it can be changed into a prime (311121413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46987 + ... + 53197.

Almost surely, 2^311121412 is an apocalyptic number.

It is an amenable number.

311121412 is an abundant number, since it is smaller than the sum of its proper divisors (311569468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311121412 is a wasteful number, since it uses less digits than its factorization.

311121412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8011 (or 8009 counting only the distinct ones).

The product of its digits is 48, while the sum is 16.

The square root of 311121412 is about 17638.6340741000. The cubic root of 311121412 is about 677.6050495459.

Adding to 311121412 its reverse (214121113), we get a palindrome (525242525).

The spelling of 311121412 in words is "three hundred eleven million, one hundred twenty-one thousand, four hundred twelve".