203023000020 has 24 divisors (see below), whose sum is σ = 568464400224. Its totient is φ = 54139466656.

The previous prime is 203023000001. The next prime is 203023000027. The reversal of 203023000020 is 20000320302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203023000027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691858274 + ... + 1691858393.

It is an arithmetic number, because the mean of its divisors is an integer number (23686016676).

Almost surely, 2^203023000020 is an apocalyptic number.

203023000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203023000020 is an abundant number, since it is smaller than the sum of its proper divisors (365441400204).

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

203023000020 is a wasteful number, since it uses less digits than its factorization.

203023000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383716679 (or 3383716677 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 203023000020 its reverse (20000320302), we get a palindrome (223023320322).

The spelling of 203023000020 in words is "two hundred three billion, twenty-three million, twenty", and thus it is an aban number.