312043224432 has 160 divisors (see below), whose sum is σ = 844856925696. Its totient is φ = 99157811200.

The previous prime is 312043224431. The next prime is 312043224433. The reversal of 312043224432 is 234422340213.

312043224432 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (312043224431) and next prime (312043224433).

It is a self number, because there is not a number n which added to its sum of digits gives 312043224432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312043224431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15779383 + ... + 15799145.

Almost surely, 2^312043224432 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 312043224432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422428462848).

312043224432 is an abundant number, since it is smaller than the sum of its proper divisors (532813701264).

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

312043224432 is a wasteful number, since it uses less digits than its factorization.

312043224432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19999 (or 19993 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 312043224432 its reverse (234422340213), we get a palindrome (546465564645).

The spelling of 312043224432 in words is "three hundred twelve billion, forty-three million, two hundred twenty-four thousand, four hundred thirty-two".