20023003020 has 96 divisors (see below), whose sum is σ = 58213048320. Its totient is φ = 5136203520.

The previous prime is 20023003009. The next prime is 20023003031. The reversal of 20023003020 is 2030032002.

It is an interprime number because it is at equal distance from previous prime (20023003009) and next prime (20023003031).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20023002987 and 20023003005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 450309 + ... + 492771.

It is an arithmetic number, because the mean of its divisors is an integer number (606385920).

Almost surely, 2^20023003020 is an apocalyptic number.

20023003020 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 20023003020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29106524160).

20023003020 is an abundant number, since it is smaller than the sum of its proper divisors (38190045300).

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

20023003020 is a wasteful number, since it uses less digits than its factorization.

20023003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42775 (or 42773 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 20023003020 its reverse (2030032002), we get a palindrome (22053035022).

The spelling of 20023003020 in words is "twenty billion, twenty-three million, three thousand, twenty".