20001231332312 has 16 divisors (see below), whose sum is σ = 37719085101840. Its totient is φ = 9942808638496.

The previous prime is 20001231332279. The next prime is 20001231332323. The reversal of 20001231332312 is 21323313210002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7225876988 + ... + 7225879755.

It is an arithmetic number, because the mean of its divisors is an integer number (2357442818865).

Almost surely, 2^{20001231332312} is an apocalyptic number.

It is an amenable number.

20001231332312 is a deficient number, since it is larger than the sum of its proper divisors (17717853769528).

20001231332312 is a wasteful number, since it uses less digits than its factorization.

20001231332312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14451756922 (or 14451756918 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20001231332312 its reverse (21323313210002), we get a palindrome (41324544542314).

The spelling of 20001231332312 in words is "twenty trillion, one billion, two hundred thirty-one million, three hundred thirty-two thousand, three hundred twelve".