204231103020 has 144 divisors (see below), whose sum is σ = 708386165760. Its totient is φ = 46656010368.

The previous prime is 204231102953. The next prime is 204231103061. The reversal of 204231103020 is 20301132402.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 204231102984 and 204231103002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2324409 + ... + 2410671.

Almost surely, 2^204231103020 is an apocalyptic number.

204231103020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204231103020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354193082880).

204231103020 is an abundant number, since it is smaller than the sum of its proper divisors (504155062740).

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

204231103020 is a wasteful number, since it uses less digits than its factorization.

204231103020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88164 (or 88159 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 204231103020 its reverse (20301132402), we get a palindrome (224532235422).

The spelling of 204231103020 in words is "two hundred four billion, two hundred thirty-one million, one hundred three thousand, twenty".