20203323224 has 64 divisors (see below), whose sum is σ = 44719503360. Its totient is φ = 8373611520.

The previous prime is 20203323113. The next prime is 20203323229. The reversal of 20203323224 is 42232330202.

It is a self number, because there is not a number n which added to its sum of digits gives 20203323224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203323229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3446504 + ... + 3452360.

It is an arithmetic number, because the mean of its divisors is an integer number (698742240).

Almost surely, 2^20203323224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20203323224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22359751680).

20203323224 is an abundant number, since it is smaller than the sum of its proper divisors (24516180136).

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

20203323224 is a wasteful number, since it uses less digits than its factorization.

20203323224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7888 (or 7884 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20203323224 its reverse (42232330202), we get a palindrome (62435653426).

The spelling of 20203323224 in words is "twenty billion, two hundred three million, three hundred twenty-three thousand, two hundred twenty-four".