20133303320 has 128 divisors (see below), whose sum is σ = 51943731840. Its totient is φ = 6957342720.

The previous prime is 20133303301. The next prime is 20133303329. The reversal of 20133303320 is 2330333102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20133303292 and 20133303301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133303329) 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, 1593749 + ... + 1606331.

It is an arithmetic number, because the mean of its divisors is an integer number (405810405).

Almost surely, 2^20133303320 is an apocalyptic number.

20133303320 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 20133303320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25971865920).

20133303320 is an abundant number, since it is smaller than the sum of its proper divisors (31810428520).

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

20133303320 is a wasteful number, since it uses less digits than its factorization.

20133303320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12805 (or 12801 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20133303320 its reverse (2330333102), we get a palindrome (22463636422).

The spelling of 20133303320 in words is "twenty billion, one hundred thirty-three million, three hundred three thousand, three hundred twenty".