311033210212 has 6 divisors (see below), whose sum is σ = 544308117878. Its totient is φ = 155516605104.

The previous prime is 311033210209. The next prime is 311033210227. The reversal of 311033210212 is 212012330113.

It can be written as a sum of positive squares in only one way, i.e., 191908829476 + 119124380736 = 438074^2 + 345144^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 311033210212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38879151273 + ... + 38879151280.

Almost surely, 2^311033210212 is an apocalyptic number.

It is an amenable number.

311033210212 is a deficient number, since it is larger than the sum of its proper divisors (233274907666).

311033210212 is a wasteful number, since it uses less digits than its factorization.

311033210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77758302557 (or 77758302555 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 311033210212 its reverse (212012330113), we get a palindrome (523045540325).

The spelling of 311033210212 in words is "three hundred eleven billion, thirty-three million, two hundred ten thousand, two hundred twelve".