203440335132 has 24 divisors (see below), whose sum is σ = 487523687056. Its totient is φ = 65980649088.

The previous prime is 203440335127. The next prime is 203440335187. The reversal of 203440335132 is 231533044302.

It is a self number, because there is not a number n which added to its sum of digits gives 203440335132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229099033 + ... + 229099920.

Almost surely, 2^203440335132 is an apocalyptic number.

It is an amenable number.

203440335132 is an abundant number, since it is smaller than the sum of its proper divisors (284083351924).

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

203440335132 is a wasteful number, since it uses less digits than its factorization.

203440335132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458198997 (or 458198995 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 203440335132 its reverse (231533044302), we get a palindrome (434973379434).

The spelling of 203440335132 in words is "two hundred three billion, four hundred forty million, three hundred thirty-five thousand, one hundred thirty-two".