312204024021320 has 64 divisors (see below), whose sum is σ = 714370746038400. Its totient is φ = 122764008701440.

The previous prime is 312204024021289. The next prime is 312204024021371. The reversal of 312204024021320 is 23120420402213.

It is a self number, because there is not a number n which added to its sum of digits gives 312204024021320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350550980 + ... + 351440460.

It is an arithmetic number, because the mean of its divisors is an integer number (11162042906850).

Almost surely, 2^{312204024021320} is an apocalyptic number.

It is an amenable number.

312204024021320 is an abundant number, since it is smaller than the sum of its proper divisors (402166722017080).

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

312204024021320 is a wasteful number, since it uses less digits than its factorization.

312204024021320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038278 (or 1038274 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 312204024021320 its reverse (23120420402213), we get a palindrome (335324444423533).

The spelling of 312204024021320 in words is "three hundred twelve trillion, two hundred four billion, twenty-four million, twenty-one thousand, three hundred twenty".