204231431020 has 48 divisors (see below), whose sum is σ = 434914401600. Its totient is φ = 80549427200.

The previous prime is 204231431017. The next prime is 204231431023. The reversal of 204231431020 is 20134132402.

204231431020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (204231431017) and next prime (204231431023).

It is a junction number, because it is equal to n+sod(n) for n = 204231430982 and 204231431000.

It is not an unprimeable number, because it can be changed into a prime (204231431023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479220 + ... + 798820.

It is an arithmetic number, because the mean of its divisors is an integer number (9060716700).

Almost surely, 2^204231431020 is an apocalyptic number.

204231431020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204231431020 is an abundant number, since it is smaller than the sum of its proper divisors (230682970580).

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

204231431020 is a wasteful number, since it uses less digits than its factorization.

204231431020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320058 (or 320056 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 204231431020 its reverse (20134132402), we get a palindrome (224365563422).

The spelling of 204231431020 in words is "two hundred four billion, two hundred thirty-one million, four hundred thirty-one thousand, twenty".