204120101042430 has 512 divisors, whose sum is σ = 521686992752640. Its totient is φ = 51062538240000.

The previous prime is 204120101042413. The next prime is 204120101042521. The reversal of 204120101042430 is 34240101021402.

It is a self number, because there is not a number n which added to its sum of digits gives 204120101042430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 318440094910 + ... + 318440095550.

It is an arithmetic number, because the mean of its divisors is an integer number (1018919907720).

Almost surely, 2^{204120101042430} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204120101042430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260843496376320).

204120101042430 is an abundant number, since it is smaller than the sum of its proper divisors (317566891710210).

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

204120101042430 is a wasteful number, since it uses less digits than its factorization.

204120101042430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 204120101042430 its reverse (34240101021402), we get a palindrome (238360202063832).

The spelling of 204120101042430 in words is "two hundred four trillion, one hundred twenty billion, one hundred one million, forty-two thousand, four hundred thirty".