204040121244 has 48 divisors (see below), whose sum is σ = 477696844800. Its totient is φ = 67784605056.

The previous prime is 204040121107. The next prime is 204040121251. The reversal of 204040121244 is 442121040402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6528984 + ... + 6560160.

It is an arithmetic number, because the mean of its divisors is an integer number (9952017600).

Almost surely, 2^204040121244 is an apocalyptic number.

It is an amenable number.

204040121244 is an abundant number, since it is smaller than the sum of its proper divisors (273656723556).

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

204040121244 is a wasteful number, since it uses less digits than its factorization.

204040121244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33002 (or 33000 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 204040121244 its reverse (442121040402), we get a palindrome (646161161646).

The spelling of 204040121244 in words is "two hundred four billion, forty million, one hundred twenty-one thousand, two hundred forty-four".