201101012203 has 16 divisors (see below), whose sum is σ = 248618868736. Its totient is φ = 158399362080.

The previous prime is 201101012171. The next prime is 201101012221. The reversal of 201101012203 is 302210101102.

It is a cyclic number.

It is not a de Polignac number, because 201101012203 - 2⁵ = 201101012171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (201101012263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4934643 + ... + 4975228.

It is an arithmetic number, because the mean of its divisors is an integer number (15538679296).

Almost surely, 2^201101012203 is an apocalyptic number.

201101012203 is a deficient number, since it is larger than the sum of its proper divisors (47517856533).

201101012203 is a wasteful number, since it uses less digits than its factorization.

201101012203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9910114.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 201101012203 its reverse (302210101102), we get a palindrome (503311113305).

The spelling of 201101012203 in words is "two hundred one billion, one hundred one million, twelve thousand, two hundred three".