311102310021212 has 24 divisors (see below), whose sum is σ = 549095096008704. Its totient is φ = 154219689780912.

The previous prime is 311102310021203. The next prime is 311102310021227. The reversal of 311102310021212 is 212120013201113.

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, 210877268 + ... + 212347419.

It is an arithmetic number, because the mean of its divisors is an integer number (22878962333696).

Almost surely, 2^{311102310021212} is an apocalyptic number.

It is an amenable number.

311102310021212 is a deficient number, since it is larger than the sum of its proper divisors (237992785987492).

311102310021212 is a wasteful number, since it uses less digits than its factorization.

311102310021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423226265 (or 423226263 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 311102310021212 its reverse (212120013201113), we get a palindrome (523222323222325).

The spelling of 311102310021212 in words is "three hundred eleven trillion, one hundred two billion, three hundred ten million, twenty-one thousand, two hundred twelve".