201003 has 8 divisors (see below), whose sum is σ = 292416. Its totient is φ = 121800.

The previous prime is 200989. The next prime is 201007. The reversal of 201003 is 300102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201003 - 2⁴ = 200987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200982 and 201000.

It is not an unprimeable number, because it can be changed into a prime (201007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3013 + ... + 3078.

It is an arithmetic number, because the mean of its divisors is an integer number (36552).

2²⁰¹⁰⁰³ is an apocalyptic number.

201003 is a deficient number, since it is larger than the sum of its proper divisors (91413).

201003 is a wasteful number, since it uses less digits than its factorization.

201003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105.

The product of its (nonzero) digits is 6, while the sum is 6.

The square root of 201003 is about 448.3335811647. Note that the first 3 decimals coincide. The cubic root of 201003 is about 58.5779514562.

Adding to 201003 its reverse (300102), we get a palindrome (501105).

Subtracting 201003 from its reverse (300102), we obtain a palindrome (99099).

The spelling of 201003 in words is "two hundred one thousand, three", and thus it is an iban number.