20020333131232 has 144 divisors (see below), whose sum is σ = 46584211877280. Its totient is φ = 8443308367872.

The previous prime is 20020333131217. The next prime is 20020333131287. The reversal of 20020333131232 is 23213133302002.

It is a junction number, because it is equal to n+sod(n) for n = 20020333131197 and 20020333131206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50050488 + ... + 50448904.

It is an arithmetic number, because the mean of its divisors is an integer number (323501471370).

Almost surely, 2^{20020333131232} 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 20020333131232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23292105938640).

20020333131232 is an abundant number, since it is smaller than the sum of its proper divisors (26563878746048).

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

20020333131232 is a wasteful number, since it uses less digits than its factorization.

20020333131232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398953 (or 398938 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20020333131232 its reverse (23213133302002), we get a palindrome (43233466433234).

The spelling of 20020333131232 in words is "twenty trillion, twenty billion, three hundred thirty-three million, one hundred thirty-one thousand, two hundred thirty-two".