203232401100020 has 24 divisors (see below), whose sum is σ = 426788781801984. Its totient is φ = 81292819584416.

The previous prime is 203232401100013. The next prime is 203232401100077. The reversal of 203232401100020 is 20001104232302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 203232401099965 and 203232401100001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3443369 + ... + 20452911.

It is an arithmetic number, because the mean of its divisors is an integer number (17782865908416).

Almost surely, 2^{203232401100020} is an apocalyptic number.

203232401100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203232401100020 is an abundant number, since it is smaller than the sum of its proper divisors (223556380701964).

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

203232401100020 is a wasteful number, since it uses less digits than its factorization.

203232401100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17606959 (or 17606957 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 203232401100020 its reverse (20001104232302), we get a palindrome (223233505332322).

The spelling of 203232401100020 in words is "two hundred three trillion, two hundred thirty-two billion, four hundred one million, one hundred thousand, twenty".