204431310230142 has 16 divisors (see below), whose sum is σ = 408862795582080. Its totient is φ = 68143740889752.

The previous prime is 204431310230137. The next prime is 204431310230179. The reversal of 204431310230142 is 241032013134402.

It is a super-2 number, since 2×204431310230142² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 11672359 + ... + 23347517.

It is an arithmetic number, because the mean of its divisors is an integer number (25553924723880).

Almost surely, 2^{204431310230142} is an apocalyptic number.

204431310230142 is an abundant number, since it is smaller than the sum of its proper divisors (204431485351938).

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

204431310230142 is a wasteful number, since it uses less digits than its factorization.

204431310230142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14593487.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 204431310230142 its reverse (241032013134402), we get a palindrome (445463323364544).

The spelling of 204431310230142 in words is "two hundred four trillion, four hundred thirty-one billion, three hundred ten million, two hundred thirty thousand, one hundred forty-two".