201020102003 has 16 divisors (see below), whose sum is σ = 230491382784. Its totient is φ = 171737677440.

The previous prime is 201020101993. The next prime is 201020102021. The reversal of 201020102003 is 300201020102.

It is a happy number.

It is not a de Polignac number, because 201020102003 - 2²⁶ = 200952993139 is a prime.

It is a super-2 number, since 2×201020102003² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201020102083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8695526 + ... + 8718612.

It is an arithmetic number, because the mean of its divisors is an integer number (14405711424).

Almost surely, 2^201020102003 is an apocalyptic number.

201020102003 is a deficient number, since it is larger than the sum of its proper divisors (29471280781).

201020102003 is a wasteful number, since it uses less digits than its factorization.

201020102003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27122.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 201020102003 its reverse (300201020102), we get a palindrome (501221122105).

The spelling of 201020102003 in words is "two hundred one billion, twenty million, one hundred two thousand, three".