201123311203 has 16 divisors (see below), whose sum is σ = 204459572736. Its totient is φ = 197801714880.

The previous prime is 201123311183. The next prime is 201123311293. The reversal of 201123311203 is 302113321102.

It is a cyclic number.

It is not a de Polignac number, because 201123311203 - 2⁵ = 201123311171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201123311293) 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, 80351650 + ... + 80354152.

It is an arithmetic number, because the mean of its divisors is an integer number (12778723296).

Almost surely, 2^201123311203 is an apocalyptic number.

201123311203 is a deficient number, since it is larger than the sum of its proper divisors (3336261533).

201123311203 is a wasteful number, since it uses less digits than its factorization.

201123311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4914.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201123311203 its reverse (302113321102), we get a palindrome (503236632305).

The spelling of 201123311203 in words is "two hundred one billion, one hundred twenty-three million, three hundred eleven thousand, two hundred three".