203343503747728 has 40 divisors (see below), whose sum is σ = 394960367347200. Its totient is φ = 101418367948800.

The previous prime is 203343503747723. The next prime is 203343503747753. The reversal of 203343503747728 is 827747305343302.

It is not an unprimeable number, because it can be changed into a prime (203343503747723) 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 7 ways as a sum of consecutive naturals, for example, 23305153 + ... + 30819103.

It is an arithmetic number, because the mean of its divisors is an integer number (9874009183680).

Almost surely, 2^{203343503747728} is an apocalyptic number.

It is an amenable number.

203343503747728 is a deficient number, since it is larger than the sum of its proper divisors (191616863599472).

203343503747728 is a wasteful number, since it uses less digits than its factorization.

203343503747728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7518175 (or 7518169 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 58.

The spelling of 203343503747728 in words is "two hundred three trillion, three hundred forty-three billion, five hundred three million, seven hundred forty-seven thousand, seven hundred twenty-eight".