311334212 has 12 divisors (see below), whose sum is σ = 622668480. Its totient is φ = 133428936.

The previous prime is 311334211. The next prime is 311334223. The reversal of 311334212 is 212433113.

311334212 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (311334211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5559512 + ... + 5559567.

It is an arithmetic number, because the mean of its divisors is an integer number (51889040).

Almost surely, 2^311334212 is an apocalyptic number.

It is an amenable number.

311334212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

311334212 is a wasteful number, since it uses less digits than its factorization.

311334212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11119090 (or 11119088 counting only the distinct ones).

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

The square root of 311334212 is about 17644.6652561050. The cubic root of 311334212 is about 677.7595031732.

Adding to 311334212 its reverse (212433113), we get a palindrome (523767325).

The spelling of 311334212 in words is "three hundred eleven million, three hundred thirty-four thousand, two hundred twelve".