204120320324 has 12 divisors (see below), whose sum is σ = 358143227904. Its totient is φ = 101793683784.

The previous prime is 204120320323. The next prime is 204120320329. The reversal of 204120320324 is 423023021402.

It is a self number, because there is not a number n which added to its sum of digits gives 204120320324.

It is not an unprimeable number, because it can be changed into a prime (204120320323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66617372 + ... + 66620435.

It is an arithmetic number, because the mean of its divisors is an integer number (29845268992).

Almost surely, 2^204120320324 is an apocalyptic number.

It is an amenable number.

204120320324 is a deficient number, since it is larger than the sum of its proper divisors (154022907580).

204120320324 is a wasteful number, since it uses less digits than its factorization.

204120320324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133238194 (or 133238192 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 204120320324 its reverse (423023021402), we get a palindrome (627143341726).

The spelling of 204120320324 in words is "two hundred four billion, one hundred twenty million, three hundred twenty thousand, three hundred twenty-four".