312313212131212 has 12 divisors (see below), whose sum is σ = 546548757126736. Its totient is φ = 156156424380720.

The previous prime is 312313212131203. The next prime is 312313212131273. The reversal of 312313212131212 is 212131212313213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41516208 + ... + 48458455.

Almost surely, 2^{312313212131212} is an apocalyptic number.

It is an amenable number.

312313212131212 is a deficient number, since it is larger than the sum of its proper divisors (234235544995524).

312313212131212 is a wasteful number, since it uses less digits than its factorization.

312313212131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90842448 (or 90842446 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

Adding to 312313212131212 its reverse (212131212313213), we get a palindrome (524444424444425).

The spelling of 312313212131212 in words is "three hundred twelve trillion, three hundred thirteen billion, two hundred twelve million, one hundred thirty-one thousand, two hundred twelve".