20012333020 has 48 divisors (see below), whose sum is σ = 44599705920. Its totient is φ = 7516836864.

The previous prime is 20012332981. The next prime is 20012333039. The reversal of 20012333020 is 2033321002.

It is a junction number, because it is equal to n+sod(n) for n = 20012332985 and 20012333003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82222 + ... + 216298.

It is an arithmetic number, because the mean of its divisors is an integer number (929160540).

Almost surely, 2^20012333020 is an apocalyptic number.

20012333020 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 20012333020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22299852960).

20012333020 is an abundant number, since it is smaller than the sum of its proper divisors (24587372900).

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

20012333020 is a wasteful number, since it uses less digits than its factorization.

20012333020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134542 (or 134540 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20012333020 its reverse (2033321002), we get a palindrome (22045654022).

The spelling of 20012333020 in words is "twenty billion, twelve million, three hundred thirty-three thousand, twenty".