312132223203320 has 64 divisors (see below), whose sum is σ = 800809821544320. Its totient is φ = 108469478467584.

The previous prime is 312132223203289. The next prime is 312132223203323. The reversal of 312132223203320 is 23302322231213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312132223203323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17654528672 + ... + 17654546351.

It is an arithmetic number, because the mean of its divisors is an integer number (12512653461630).

Almost surely, 2^{312132223203320} is an apocalyptic number.

It is an amenable number.

312132223203320 is an abundant number, since it is smaller than the sum of its proper divisors (488677598341000).

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

312132223203320 is a wasteful number, since it uses less digits than its factorization.

312132223203320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35309075064 (or 35309075060 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 312132223203320 its reverse (23302322231213), we get a palindrome (335434545434533).

The spelling of 312132223203320 in words is "three hundred twelve trillion, one hundred thirty-two billion, two hundred twenty-three million, two hundred three thousand, three hundred twenty".