204121041131242 has 32 divisors (see below), whose sum is σ = 327831723676800. Its totient is φ = 95030748072000.

The previous prime is 204121041131239. The next prime is 204121041131269. The reversal of 204121041131242 is 242131140121402.

It is a self number, because there is not a number n which added to its sum of digits gives 204121041131242.

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, 30827142 + ... + 36858577.

It is an arithmetic number, because the mean of its divisors is an integer number (10244741364900).

Almost surely, 2^{204121041131242} is an apocalyptic number.

204121041131242 is a deficient number, since it is larger than the sum of its proper divisors (123710682545558).

204121041131242 is a wasteful number, since it uses less digits than its factorization.

204121041131242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67687102.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 204121041131242 its reverse (242131140121402), we get a palindrome (446252181252644).

The spelling of 204121041131242 in words is "two hundred four trillion, one hundred twenty-one billion, forty-one million, one hundred thirty-one thousand, two hundred forty-two".