313231222310312 has 16 divisors (see below), whose sum is σ = 606253978665600. Its totient is φ = 151563494666160.

The previous prime is 313231222310309. The next prime is 313231222310341. The reversal of 313231222310312 is 213013222132313.

It is a super-2 number, since 2×313231222310312² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631514560862 + ... + 631514561357.

It is an arithmetic number, because the mean of its divisors is an integer number (37890873666600).

Almost surely, 2^{313231222310312} is an apocalyptic number.

It is an amenable number.

313231222310312 is a deficient number, since it is larger than the sum of its proper divisors (293022756355288).

313231222310312 is a wasteful number, since it uses less digits than its factorization.

313231222310312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263029122256 (or 1263029122252 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 313231222310312 its reverse (213013222132313), we get a palindrome (526244444442625).

The spelling of 313231222310312 in words is "three hundred thirteen trillion, two hundred thirty-one billion, two hundred twenty-two million, three hundred ten thousand, three hundred twelve".