20303144000 has 112 divisors (see below), whose sum is σ = 51032542080. Its totient is φ = 7999833600.

The previous prime is 20303143997. The next prime is 20303144023. The reversal of 20303144000 is 44130302.

It is a self number, because there is not a number n which added to its sum of digits gives 20303144000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517061 + ... + 554939.

Almost surely, 2^20303144000 is an apocalyptic number.

20303144000 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 20303144000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25516271040).

20303144000 is an abundant number, since it is smaller than the sum of its proper divisors (30729398080).

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

20303144000 is an equidigital number, since it uses as much as digits as its factorization.

20303144000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37973 (or 37953 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20303144000 its reverse (44130302), we get a palindrome (20347274302).

The spelling of 20303144000 in words is "twenty billion, three hundred three million, one hundred forty-four thousand".