204431310230140 has 96 divisors (see below), whose sum is σ = 503897833764864. Its totient is φ = 68208094725120.

The previous prime is 204431310230137. The next prime is 204431310230179. The reversal of 204431310230140 is 41032013134402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 204431310230099 and 204431310230108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61022989 + ... + 64285828.

It is an arithmetic number, because the mean of its divisors is an integer number (5248935768384).

Almost surely, 2^{204431310230140} is an apocalyptic number.

204431310230140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204431310230140 is an abundant number, since it is smaller than the sum of its proper divisors (299466523534724).

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

204431310230140 is a wasteful number, since it uses less digits than its factorization.

204431310230140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125309147 (or 125309145 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 204431310230140 its reverse (41032013134402), we get a palindrome (245463323364542).

The spelling of 204431310230140 in words is "two hundred four trillion, four hundred thirty-one billion, three hundred ten million, two hundred thirty thousand, one hundred forty".