201003243 has 24 divisors (see below), whose sum is σ = 313436160. Its totient is φ = 114241680.

The previous prime is 201003241. The next prime is 201003247. The reversal of 201003243 is 342300102.

It is not a de Polignac number, because 201003243 - 2¹ = 201003241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201003241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24498 + ... + 31656.

It is an arithmetic number, because the mean of its divisors is an integer number (13059840).

Almost surely, 2^201003243 is an apocalyptic number.

201003243 is a deficient number, since it is larger than the sum of its proper divisors (112432917).

201003243 is a wasteful number, since it uses less digits than its factorization.

201003243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7367 (or 7360 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 201003243 is about 14177.5612500881. The cubic root of 201003243 is about 585.7797506188.

Adding to 201003243 its reverse (342300102), we get a palindrome (543303345).

The spelling of 201003243 in words is "two hundred one million, three thousand, two hundred forty-three".