20331032120 has 128 divisors (see below), whose sum is σ = 52876800000. Its totient is φ = 6891505152.

The previous prime is 20331032119. The next prime is 20331032129. The reversal of 20331032120 is 2123013302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331032129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9970061 + ... + 9972099.

It is an arithmetic number, because the mean of its divisors is an integer number (413100000).

Almost surely, 2^20331032120 is an apocalyptic number.

20331032120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20331032120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26438400000).

20331032120 is an abundant number, since it is smaller than the sum of its proper divisors (32545767880).

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

20331032120 is a wasteful number, since it uses less digits than its factorization.

20331032120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445 (or 2441 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20331032120 its reverse (2123013302), we get a palindrome (22454045422).

The spelling of 20331032120 in words is "twenty billion, three hundred thirty-one million, thirty-two thousand, one hundred twenty".