204120131231130 has 64 divisors (see below), whose sum is σ = 491775369413760. Its totient is φ = 54222416527104.

The previous prime is 204120131231111. The next prime is 204120131231183. The reversal of 204120131231130 is 31132131021402.

It is a self number, because there is not a number n which added to its sum of digits gives 204120131231130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58647957 + ... + 62030823.

It is an arithmetic number, because the mean of its divisors is an integer number (7683990147090).

Almost surely, 2^{204120131231130} is an apocalyptic number.

204120131231130 is an abundant number, since it is smaller than the sum of its proper divisors (287655238182630).

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

204120131231130 is a wasteful number, since it uses less digits than its factorization.

204120131231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390623.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 204120131231130 its reverse (31132131021402), we get a palindrome (235252262252532).

The spelling of 204120131231130 in words is "two hundred four trillion, one hundred twenty billion, one hundred thirty-one million, two hundred thirty-one thousand, one hundred thirty".