204013241220 has 96 divisors (see below), whose sum is σ = 583532361216. Its totient is φ = 53233113600.

The previous prime is 204013241219. The next prime is 204013241221. The reversal of 204013241220 is 22142310402.

It is an interprime number because it is at equal distance from previous prime (204013241219) and next prime (204013241221).

It is not an unprimeable number, because it can be changed into a prime (204013241221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18778590 + ... + 18789450.

It is an arithmetic number, because the mean of its divisors is an integer number (6078462096).

Almost surely, 2^204013241220 is an apocalyptic number.

204013241220 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 204013241220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291766180608).

204013241220 is an abundant number, since it is smaller than the sum of its proper divisors (379519119996).

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

204013241220 is a wasteful number, since it uses less digits than its factorization.

204013241220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17581 (or 17579 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 204013241220 its reverse (22142310402), we get a palindrome (226155551622).

The spelling of 204013241220 in words is "two hundred four billion, thirteen million, two hundred forty-one thousand, two hundred twenty".