204040431212 has 24 divisors (see below), whose sum is σ = 357723088800. Its totient is φ = 101833929216.

The previous prime is 204040431193. The next prime is 204040431233. The reversal of 204040431212 is 212134040402.

204040431212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10775489 + ... + 10794407.

It is an arithmetic number, because the mean of its divisors is an integer number (14905128700).

Almost surely, 2^204040431212 is an apocalyptic number.

It is an amenable number.

204040431212 is a deficient number, since it is larger than the sum of its proper divisors (153682657588).

204040431212 is a wasteful number, since it uses less digits than its factorization.

204040431212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23705 (or 23703 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 204040431212 its reverse (212134040402), we get a palindrome (416174471614).

The spelling of 204040431212 in words is "two hundred four billion, forty million, four hundred thirty-one thousand, two hundred twelve".