312213309985 has 32 divisors (see below), whose sum is σ = 380730631680. Its totient is φ = 245744928000.

The previous prime is 312213309901. The next prime is 312213310027. The reversal of 312213309985 is 589903312213.

It is not a de Polignac number, because 312213309985 - 2³¹ = 310065826337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239978835 + ... + 239980135.

It is an arithmetic number, because the mean of its divisors is an integer number (11897832240).

Almost surely, 2^312213309985 is an apocalyptic number.

It is an amenable number.

312213309985 is a deficient number, since it is larger than the sum of its proper divisors (68517321695).

312213309985 is a wasteful number, since it uses less digits than its factorization.

312213309985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 312213309985 in words is "three hundred twelve billion, two hundred thirteen million, three hundred nine thousand, nine hundred eighty-five".