20312042334312 has 128 divisors (see below), whose sum is σ = 52539334041600. Its totient is φ = 6539959545600.

The previous prime is 20312042334257. The next prime is 20312042334313. The reversal of 20312042334312 is 21343324021302.

It is a happy number.

20312042334312 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 20312042334312.

It is not an unprimeable number, because it can be changed into a prime (20312042334313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214801762 + ... + 214896302.

It is an arithmetic number, because the mean of its divisors is an integer number (410463547200).

Almost surely, 2^{20312042334312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20312042334312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26269667020800).

20312042334312 is an abundant number, since it is smaller than the sum of its proper divisors (32227291707288).

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

20312042334312 is a wasteful number, since it uses less digits than its factorization.

20312042334312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97087 (or 97083 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 20312042334312 its reverse (21343324021302), we get a palindrome (41655366355614).

The spelling of 20312042334312 in words is "twenty trillion, three hundred twelve billion, forty-two million, three hundred thirty-four thousand, three hundred twelve".