312112245320 has 64 divisors (see below), whose sum is σ = 739539720000. Its totient is φ = 118221873408.

The previous prime is 312112245253. The next prime is 312112245323. The reversal of 312112245320 is 23542211213.

It is a self number, because there is not a number n which added to its sum of digits gives 312112245320.

It is not an unprimeable number, because it can be changed into a prime (312112245323) 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, 1653131 + ... + 1832229.

It is an arithmetic number, because the mean of its divisors is an integer number (11555308125).

Almost surely, 2^312112245320 is an apocalyptic number.

It is an amenable number.

312112245320 is an abundant number, since it is smaller than the sum of its proper divisors (427427474680).

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

312112245320 is a wasteful number, since it uses less digits than its factorization.

312112245320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181422 (or 181418 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 312112245320 its reverse (23542211213), we get a palindrome (335654456533).

The spelling of 312112245320 in words is "three hundred twelve billion, one hundred twelve million, two hundred forty-five thousand, three hundred twenty".