312331143555216 has 120 divisors (see below), whose sum is σ = 875548851929856. Its totient is φ = 103937089386240.

The previous prime is 312331143555203. The next prime is 312331143555251. The reversal of 312331143555216 is 612555341133213.

312331143555216 is a `hidden beast` number, since 3 + 1 + 2 + 3 + 3 + 114 + 3 + 5 + 5 + 521 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493705986 + ... + 494338206.

Almost surely, 2^{312331143555216} is an apocalyptic number.

312331143555216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

312331143555216 is an abundant number, since it is smaller than the sum of its proper divisors (563217708374640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312331143555216 is a wasteful number, since it uses less digits than its factorization.

312331143555216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637941 (or 637932 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

Adding to 312331143555216 its reverse (612555341133213), we get a palindrome (924886484688429).

The spelling of 312331143555216 in words is "three hundred twelve trillion, three hundred thirty-one billion, one hundred forty-three million, five hundred fifty-five thousand, two hundred sixteen".