203450645312 has 14 divisors (see below), whose sum is σ = 403722374418. Its totient is φ = 101725322624.

The previous prime is 203450645303. The next prime is 203450645327. The reversal of 203450645312 is 213546054302.

It can be written as a sum of positive squares in only one way, i.e., 202298450176 + 1152195136 = 449776^2 + 33944^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1589458103 + ... + 1589458230.

Almost surely, 2^203450645312 is an apocalyptic number.

It is an amenable number.

203450645312 is a deficient number, since it is larger than the sum of its proper divisors (200271729106).

203450645312 is an equidigital number, since it uses as much as digits as its factorization.

203450645312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178916345 (or 3178916335 counting only the distinct ones).

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

Adding to 203450645312 its reverse (213546054302), we get a palindrome (416996699614).

The spelling of 203450645312 in words is "two hundred three billion, four hundred fifty million, six hundred forty-five thousand, three hundred twelve".