313212120320012 has 24 divisors (see below), whose sum is σ = 548462829573120. Its totient is φ = 156508481091600.

The previous prime is 313212120319993. The next prime is 313212120320023. The reversal of 313212120320012 is 210023021212313.

It is a self number, because there is not a number n which added to its sum of digits gives 313212120320012.

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, 44283053 + ... + 50866619.

It is an arithmetic number, because the mean of its divisors is an integer number (22852617898880).

Almost surely, 2^{313212120320012} is an apocalyptic number.

It is an amenable number.

313212120320012 is a deficient number, since it is larger than the sum of its proper divisors (235250709253108).

313212120320012 is a wasteful number, since it uses less digits than its factorization.

313212120320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6590981 (or 6590979 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 313212120320012 its reverse (210023021212313), we get a palindrome (523235141532325).

The spelling of 313212120320012 in words is "three hundred thirteen trillion, two hundred twelve billion, one hundred twenty million, three hundred twenty thousand, twelve".