201023003 has 4 divisors (see below), whose sum is σ = 207507648. Its totient is φ = 194538360.

The previous prime is 201022993. The next prime is 201023029. The reversal of 201023003 is 300320102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201023003 - 2¹⁶ = 200957467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201023503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3242276 + ... + 3242337.

It is an arithmetic number, because the mean of its divisors is an integer number (51876912).

Almost surely, 2^201023003 is an apocalyptic number.

201023003 is a deficient number, since it is larger than the sum of its proper divisors (6484645).

201023003 is an equidigital number, since it uses as much as digits as its factorization.

201023003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6484644.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 201023003 is about 14178.2581088087. The cubic root of 201023003 is about 585.7989453814.

Adding to 201023003 its reverse (300320102), we get a palindrome (501343105).

It can be divided in two parts, 20102 and 3003, that multiplied together give a palindrome (60366306).

The spelling of 201023003 in words is "two hundred one million, twenty-three thousand, three".