312043101320 has 32 divisors (see below), whose sum is σ = 702121504320. Its totient is φ = 124812880320.

The previous prime is 312043101313. The next prime is 312043101323. The reversal of 312043101320 is 23101340213.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 312043101292 and 312043101301.

It is not an unprimeable number, because it can be changed into a prime (312043101323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1180115 + ... + 1420125.

It is an arithmetic number, because the mean of its divisors is an integer number (21941297010).

Almost surely, 2^312043101320 is an apocalyptic number.

It is an amenable number.

312043101320 is an abundant number, since it is smaller than the sum of its proper divisors (390078403000).

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

312043101320 is a wasteful number, since it uses less digits than its factorization.

312043101320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272525 (or 272521 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312043101320 its reverse (23101340213), we get a palindrome (335144441533).

The spelling of 312043101320 in words is "three hundred twelve billion, forty-three million, one hundred one thousand, three hundred twenty".