311313300303212 has 12 divisors (see below), whose sum is σ = 545073565223880. Its totient is φ = 155577995953536.

The previous prime is 311313300303211. The next prime is 311313300303221. The reversal of 311313300303212 is 212303003313113.

It is a super-2 number, since 2×311313300303212² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311313300303211) 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, 19663540613 + ... + 19663556444.

It is an arithmetic number, because the mean of its divisors is an integer number (45422797101990).

Almost surely, 2^{311313300303212} is an apocalyptic number.

It is an amenable number.

311313300303212 is a deficient number, since it is larger than the sum of its proper divisors (233760264920668).

311313300303212 is a wasteful number, since it uses less digits than its factorization.

311313300303212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39327099040 (or 39327099038 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 311313300303212 its reverse (212303003313113), we get a palindrome (523616303616325).

The spelling of 311313300303212 in words is "three hundred eleven trillion, three hundred thirteen billion, three hundred million, three hundred three thousand, two hundred twelve".