203459000000 has 98 divisors (see below), whose sum is σ = 504669712020. Its totient is φ = 81383200000.

The previous prime is 203458999981. The next prime is 203459000027. The reversal of 203459000000 is 954302.

It is a self number, because there is not a number n which added to its sum of digits gives 203459000000.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 898271 + ... + 1101729.

Almost surely, 2^203459000000 is an apocalyptic number.

203459000000 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 203459000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252334856010).

203459000000 is an abundant number, since it is smaller than the sum of its proper divisors (301210712020).

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

203459000000 is an frugal number, since it uses more digits than its factorization.

203459000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203501 (or 203466 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 203459000000 its reverse (954302), we get a palindrome (203459954302).

The spelling of 203459000000 in words is "two hundred three billion, four hundred fifty-nine million", and thus it is an aban number.