312043312 has 40 divisors (see below), whose sum is σ = 695566592. Its totient is φ = 132840000.

The previous prime is 312043301. The next prime is 312043337. The reversal of 312043312 is 213340213.

It is a self number, because there is not a number n which added to its sum of digits gives 312043312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7687 + ... + 26137.

Almost surely, 2^312043312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312043312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347783296).

312043312 is an abundant number, since it is smaller than the sum of its proper divisors (383523280).

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

312043312 is a wasteful number, since it uses less digits than its factorization.

312043312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18617 (or 18611 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 312043312 is about 17664.7477196817. The cubic root of 312043312 is about 678.2736717981.

Adding to 312043312 its reverse (213340213), we get a palindrome (525383525).

The spelling of 312043312 in words is "three hundred twelve million, forty-three thousand, three hundred twelve".