311300312211212 has 6 divisors (see below), whose sum is σ = 544775546369628. Its totient is φ = 155650156105604.

The previous prime is 311300312211209. The next prime is 311300312211257. The reversal of 311300312211212 is 212112213003113.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38912539026398 + ... + 38912539026405.

It is an arithmetic number, because the mean of its divisors is an integer number (90795924394938).

Almost surely, 2^{311300312211212} is an apocalyptic number.

It is an amenable number.

311300312211212 is a deficient number, since it is larger than the sum of its proper divisors (233475234158416).

311300312211212 is a wasteful number, since it uses less digits than its factorization.

311300312211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77825078052807 (or 77825078052805 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 311300312211212 its reverse (212112213003113), we get a palindrome (523412525214325).

The spelling of 311300312211212 in words is "three hundred eleven trillion, three hundred billion, three hundred twelve million, two hundred eleven thousand, two hundred twelve".