20303321010 has 96 divisors (see below), whose sum is σ = 56981117952. Its totient is φ = 4616398080.

The previous prime is 20303320997. The next prime is 20303321011. The reversal of 20303321010 is 1012330302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20303321011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244614 + ... + 316926.

It is an arithmetic number, because the mean of its divisors is an integer number (593553312).

Almost surely, 2^20303321010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20303321010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28490558976).

20303321010 is an abundant number, since it is smaller than the sum of its proper divisors (36677796942).

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

20303321010 is a wasteful number, since it uses less digits than its factorization.

20303321010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72528 (or 72521 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20303321010 its reverse (1012330302), we get a palindrome (21315651312).

The spelling of 20303321010 in words is "twenty billion, three hundred three million, three hundred twenty-one thousand, ten".