204121243330 has 32 divisors (see below), whose sum is σ = 370306842048. Its totient is φ = 81006868800.

The previous prime is 204121243301. The next prime is 204121243349. The reversal of 204121243330 is 33342121402.

It is a junction number, because it is equal to n+sod(n) for n = 204121243295 and 204121243304.

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, 6758944 + ... + 6789076.

It is an arithmetic number, because the mean of its divisors is an integer number (11572088814).

Almost surely, 2^204121243330 is an apocalyptic number.

204121243330 is a deficient number, since it is larger than the sum of its proper divisors (166185598718).

204121243330 is a wasteful number, since it uses less digits than its factorization.

204121243330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35442.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 204121243330 its reverse (33342121402), we get a palindrome (237463364732).

The spelling of 204121243330 in words is "two hundred four billion, one hundred twenty-one million, two hundred forty-three thousand, three hundred thirty".