20023233020 has 96 divisors (see below), whose sum is σ = 49404805632. Its totient is φ = 6672768768.

The previous prime is 20023233007. The next prime is 20023233031. The reversal of 20023233020 is 2033232002.

It is a self number, because there is not a number n which added to its sum of digits gives 20023233020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9877247 + ... + 9879273.

It is an arithmetic number, because the mean of its divisors is an integer number (514633392).

Almost surely, 2^20023233020 is an apocalyptic number.

20023233020 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 20023233020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24702402816).

20023233020 is an abundant number, since it is smaller than the sum of its proper divisors (29381572612).

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

20023233020 is a wasteful number, since it uses less digits than its factorization.

20023233020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987 (or 3985 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

Adding to 20023233020 its reverse (2033232002), we get a palindrome (22056465022).

The spelling of 20023233020 in words is "twenty billion, twenty-three million, two hundred thirty-three thousand, twenty".