203240217000 has 128 divisors (see below), whose sum is σ = 634641920640. Its totient is φ = 54151884800.

The previous prime is 203240216999. The next prime is 203240217029. The reversal of 203240217000 is 712042302.

203240217000 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 31 ways as a sum of consecutive naturals, for example, 3623167 + ... + 3678833.

It is an arithmetic number, because the mean of its divisors is an integer number (4958140005).

Almost surely, 2^203240217000 is an apocalyptic number.

203240217000 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 203240217000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317320960320).

203240217000 is an abundant number, since it is smaller than the sum of its proper divisors (431401703640).

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

203240217000 is a wasteful number, since it uses less digits than its factorization.

203240217000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56908 (or 56894 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

Adding to 203240217000 its reverse (712042302), we get a palindrome (203952259302).

It can be divided in two parts, 2032402 and 17000, that added together give a palindrome (2049402).

The spelling of 203240217000 in words is "two hundred three billion, two hundred forty million, two hundred seventeen thousand".