20320025313042 has 96 divisors (see below), whose sum is σ = 54203782563840. Its totient is φ = 5357441450880.

The previous prime is 20320025312963. The next prime is 20320025313043. The reversal of 20320025313042 is 24031352002302.

20320025313042 is a `hidden beast` number, since 2 + 0 + 320 + 0 + 2 + 5 + 31 + 304 + 2 = 666.

It is a super-3 number, since 3×20320025313042³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20320025312997 and 20320025313015.

It is not an unprimeable number, because it can be changed into a prime (20320025313043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3260559 + ... + 7160397.

It is an arithmetic number, because the mean of its divisors is an integer number (564622735040).

Almost surely, 2^{20320025313042} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20320025313042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27101891281920).

20320025313042 is an abundant number, since it is smaller than the sum of its proper divisors (33883757250798).

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

20320025313042 is a wasteful number, since it uses less digits than its factorization.

20320025313042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903048 (or 3903045 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 20320025313042 its reverse (24031352002302), we get a palindrome (44351377315344).

The spelling of 20320025313042 in words is "twenty trillion, three hundred twenty billion, twenty-five million, three hundred thirteen thousand, forty-two".