204423142241020 has 48 divisors (see below), whose sum is σ = 470214692317440. Its totient is φ = 74305531618304.

The previous prime is 204423142240963. The next prime is 204423142241027. The reversal of 204423142241020 is 20142241324402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204423142241027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10366275244 + ... + 10366294963.

It is an arithmetic number, because the mean of its divisors is an integer number (9796139423280).

Almost surely, 2^{204423142241020} is an apocalyptic number.

204423142241020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204423142241020 is an abundant number, since it is smaller than the sum of its proper divisors (265791550076420).

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

204423142241020 is a wasteful number, since it uses less digits than its factorization.

204423142241020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20732570262 (or 20732570260 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 204423142241020 its reverse (20142241324402), we get a palindrome (224565383565422).

The spelling of 204423142241020 in words is "two hundred four trillion, four hundred twenty-three billion, one hundred forty-two million, two hundred forty-one thousand, twenty".