312212311132140 has 60 divisors (see below), whose sum is σ = 979421583445536. Its totient is φ = 83256616301472.

The previous prime is 312212311132097. The next prime is 312212311132229. The reversal of 312212311132140 is 41231113212213.

312212311132140 is a `hidden beast` number, since 3 + 1 + 2 + 21 + 2 + 311 + 1 + 321 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 96361822804 + ... + 96361826043.

Almost surely, 2^{312212311132140} is an apocalyptic number.

312212311132140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312212311132140 is an abundant number, since it is smaller than the sum of its proper divisors (667209272313396).

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

312212311132140 is a wasteful number, since it uses less digits than its factorization.

312212311132140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192723648868 (or 192723648857 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 312212311132140 its reverse (41231113212213), we get a palindrome (353443424344353).

The spelling of 312212311132140 in words is "three hundred twelve trillion, two hundred twelve billion, three hundred eleven million, one hundred thirty-two thousand, one hundred forty".