203200012020 has 48 divisors (see below), whose sum is σ = 569007065088. Its totient is φ = 54182190720.

The previous prime is 203200012019. The next prime is 203200012027. The reversal of 203200012020 is 20210002302.

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

It is a junction number, because it is equal to n+sod(n) for n = 203200011987 and 203200012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203200012027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626622 + ... + 893898.

It is an arithmetic number, because the mean of its divisors is an integer number (11854313856).

Almost surely, 2^203200012020 is an apocalyptic number.

203200012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203200012020 is an abundant number, since it is smaller than the sum of its proper divisors (365807053068).

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

203200012020 is a wasteful number, since it uses less digits than its factorization.

203200012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279960 (or 279958 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 203200012020 its reverse (20210002302), we get a palindrome (223410014322).

The spelling of 203200012020 in words is "two hundred three billion, two hundred million, twelve thousand, twenty".