203033303989 has 12 divisors (see below), whose sum is σ = 209830571820. Its totient is φ = 196449628800.

The previous prime is 203033303953. The next prime is 203033304013. The reversal of 203033303989 is 989303330302.

It can be written as a sum of positive squares in 2 ways, for example, as 4258215025 + 198775088964 = 65255^2 + 445842^2 .

It is not a de Polignac number, because 203033303989 - 2⁹ = 203033303477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203033309989) 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 11 ways as a sum of consecutive naturals, for example, 6828447 + ... + 6858115.

It is an arithmetic number, because the mean of its divisors is an integer number (17485880985).

Almost surely, 2^203033303989 is an apocalyptic number.

It is an amenable number.

203033303989 is a deficient number, since it is larger than the sum of its proper divisors (6797267831).

203033303989 is an equidigital number, since it uses as much as digits as its factorization.

203033303989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36852 (or 36821 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 43.

The spelling of 203033303989 in words is "two hundred three billion, thirty-three million, three hundred three thousand, nine hundred eighty-nine".