20303023000 has 128 divisors (see below), whose sum is σ = 51245550720. Its totient is φ = 7484505600.

The previous prime is 20303022991. The next prime is 20303023001. The reversal of 20303023000 is 32030302.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303023001) 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 31 ways as a sum of consecutive naturals, for example, 15898362 + ... + 15899638.

It is an arithmetic number, because the mean of its divisors is an integer number (400355865).

Almost surely, 2^20303023000 is an apocalyptic number.

20303023000 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 20303023000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25622775360).

20303023000 is an abundant number, since it is smaller than the sum of its proper divisors (30942527720).

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

20303023000 is a wasteful number, since it uses less digits than its factorization.

20303023000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534 (or 2520 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 13.

Adding to 20303023000 its reverse (32030302), we get a palindrome (20335053302).

It can be divided in two parts, 2030302 and 3000, that added together give a palindrome (2033302).

The spelling of 20303023000 in words is "twenty billion, three hundred three million, twenty-three thousand".