311828212 has 24 divisors (see below), whose sum is σ = 578442816. Its totient is φ = 146579328.

The previous prime is 311828201. The next prime is 311828269. The reversal of 311828212 is 212828113.

311828212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77113 + ... + 81055.

It is an arithmetic number, because the mean of its divisors is an integer number (24101784).

Almost surely, 2^311828212 is an apocalyptic number.

It is an amenable number.

311828212 is a deficient number, since it is larger than the sum of its proper divisors (266614604).

311828212 is a wasteful number, since it uses less digits than its factorization.

311828212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127 (or 5125 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 311828212 is about 17658.6582729266. The cubic root of 311828212 is about 678.1177851017.

Subtracting from 311828212 its reverse (212828113), we obtain a palindrome (99000099).

The spelling of 311828212 in words is "three hundred eleven million, eight hundred twenty-eight thousand, two hundred twelve".