203352546140 has 48 divisors (see below), whose sum is σ = 437635820160. Its totient is φ = 79328585280.

The previous prime is 203352546121. The next prime is 203352546149. The reversal of 203352546140 is 41645253302.

It is a self number, because there is not a number n which added to its sum of digits gives 203352546140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203352546149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387335 + ... + 746145.

It is an arithmetic number, because the mean of its divisors is an integer number (9117412920).

Almost surely, 2^203352546140 is an apocalyptic number.

203352546140 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 203352546140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218817910080).

203352546140 is an abundant number, since it is smaller than the sum of its proper divisors (234283274020).

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

203352546140 is a wasteful number, since it uses less digits than its factorization.

203352546140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359522 (or 359520 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 203352546140 its reverse (41645253302), we get a palindrome (244997799442).

The spelling of 203352546140 in words is "two hundred three billion, three hundred fifty-two million, five hundred forty-six thousand, one hundred forty".