204220303101240 has 128 divisors (see below), whose sum is σ = 618115936023360. Its totient is φ = 53973908086784.

The previous prime is 204220303101163. The next prime is 204220303101259. The reversal of 204220303101240 is 42101303022402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 204220303101240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257746162 + ... + 258537278.

Almost surely, 2^{204220303101240} is an apocalyptic number.

204220303101240 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 204220303101240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309057968011680).

204220303101240 is an abundant number, since it is smaller than the sum of its proper divisors (413895632922120).

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

204220303101240 is a wasteful number, since it uses less digits than its factorization.

204220303101240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810281 (or 810277 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 204220303101240 its reverse (42101303022402), we get a palindrome (246321606123642).

The spelling of 204220303101240 in words is "two hundred four trillion, two hundred twenty billion, three hundred three million, one hundred one thousand, two hundred forty".