312323210020 has 24 divisors (see below), whose sum is σ = 660666182904. Its totient is φ = 124017390336.

The previous prime is 312323209999. The next prime is 312323210047. The reversal of 312323210020 is 20012323213.

It can be written as a sum of positive squares in 4 ways, for example, as 82452825316 + 229870384704 = 287146^2 + 479448^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 312323210020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56990547 + ... + 56996026.

It is an arithmetic number, because the mean of its divisors is an integer number (27527757621).

Almost surely, 2^312323210020 is an apocalyptic number.

It is an amenable number.

312323210020 is an abundant number, since it is smaller than the sum of its proper divisors (348342972884).

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

312323210020 is a wasteful number, since it uses less digits than its factorization.

312323210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113986719 (or 113986717 counting only the distinct ones).

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

Adding to 312323210020 its reverse (20012323213), we get a palindrome (332335533233).

The spelling of 312323210020 in words is "three hundred twelve billion, three hundred twenty-three million, two hundred ten thousand, twenty".