203431233020 has 48 divisors (see below), whose sum is σ = 434045249568. Its totient is φ = 80072298240.

The previous prime is 203431233017. The next prime is 203431233043. The reversal of 203431233020 is 20332134302.

203431233020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 1180274 + ... + 1341606.

It is an arithmetic number, because the mean of its divisors is an integer number (9042609366).

Almost surely, 2^203431233020 is an apocalyptic number.

203431233020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203431233020 is an abundant number, since it is smaller than the sum of its proper divisors (230614016548).

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

203431233020 is a wasteful number, since it uses less digits than its factorization.

203431233020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162350 (or 162348 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 203431233020 its reverse (20332134302), we get a palindrome (223763367322).

The spelling of 203431233020 in words is "two hundred three billion, four hundred thirty-one million, two hundred thirty-three thousand, twenty".