20233303020 has 144 divisors (see below), whose sum is σ = 70613524800. Its totient is φ = 4593673728.

The previous prime is 20233302989. The next prime is 20233303037. The reversal of 20233303020 is 2030333202.

It is a super-2 number, since 2×20233303020² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20233302984 and 20233303002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 133854 + ... + 241626.

It is an arithmetic number, because the mean of its divisors is an integer number (490371700).

Almost surely, 2^20233303020 is an apocalyptic number.

20233303020 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 20233303020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35306762400).

20233303020 is an abundant number, since it is smaller than the sum of its proper divisors (50380221780).

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

20233303020 is a wasteful number, since it uses less digits than its factorization.

20233303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107944 (or 107939 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

Adding to 20233303020 its reverse (2030333202), we get a palindrome (22263636222).

The spelling of 20233303020 in words is "twenty billion, two hundred thirty-three million, three hundred three thousand, twenty".