203013128 has 16 divisors (see below), whose sum is σ = 381046380. Its totient is φ = 101400768.

The previous prime is 203013127. The next prime is 203013169. The reversal of 203013128 is 821310302.

It can be written as a sum of positive squares in 2 ways, for example, as 195384484 + 7628644 = 13978^2 + 2762^2 .

It is not an unprimeable number, because it can be changed into a prime (203013127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4751 + ... + 20702.

Almost surely, 2^203013128 is an apocalyptic number.

It is an amenable number.

203013128 is a deficient number, since it is larger than the sum of its proper divisors (178033252).

203013128 is a wasteful number, since it uses less digits than its factorization.

203013128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26456 (or 26452 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 203013128 is about 14248.2675438104. The cubic root of 203013128 is about 587.7257347730.

The spelling of 203013128 in words is "two hundred three million, thirteen thousand, one hundred twenty-eight".