204310000000 has 128 divisors (see below), whose sum is σ = 508803384960. Its totient is φ = 81720000000.

The previous prime is 204309999931. The next prime is 204310000061. The reversal of 204310000000 is 13402.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×204310000000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9989785 + ... + 10010215.

It is an arithmetic number, because the mean of its divisors is an integer number (3975026445).

Almost surely, 2^204310000000 is an apocalyptic number.

204310000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204310000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254401692480).

204310000000 is an abundant number, since it is smaller than the sum of its proper divisors (304493384960).

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

204310000000 is an frugal number, since it uses more digits than its factorization.

204310000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20480 (or 20438 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 204310000000 its reverse (13402), we get a palindrome (204310013402).

The spelling of 204310000000 in words is "two hundred four billion, three hundred ten million", and thus it is an aban number.