203405241252 has 12 divisors (see below), whose sum is σ = 474612229616. Its totient is φ = 67801747080.

The previous prime is 203405241233. The next prime is 203405241253. The reversal of 203405241252 is 252142504302.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (203405241253) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8475218374 + ... + 8475218397.

Almost surely, 2^203405241252 is an apocalyptic number.

It is an amenable number.

203405241252 is an abundant number, since it is smaller than the sum of its proper divisors (271206988364).

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

203405241252 is a wasteful number, since it uses less digits than its factorization.

203405241252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16950436778 (or 16950436776 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 203405241252 its reverse (252142504302), we get a palindrome (455547745554).

The spelling of 203405241252 in words is "two hundred three billion, four hundred five million, two hundred forty-one thousand, two hundred fifty-two".