201303311223 has 16 divisors (see below), whose sum is σ = 322892529920. Its totient is φ = 108976228416.

The previous prime is 201303311213. The next prime is 201303311227. The reversal of 201303311223 is 322113303102.

It is not a de Polignac number, because 201303311223 - 2⁴ = 201303311207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 201303311223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201303311227) 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, 252259390 + ... + 252260187.

It is an arithmetic number, because the mean of its divisors is an integer number (20180783120).

Almost surely, 2^201303311223 is an apocalyptic number.

201303311223 is a deficient number, since it is larger than the sum of its proper divisors (121589218697).

201303311223 is a wasteful number, since it uses less digits than its factorization.

201303311223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504519606.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 201303311223 its reverse (322113303102), we get a palindrome (523416614325).

The spelling of 201303311223 in words is "two hundred one billion, three hundred three million, three hundred eleven thousand, two hundred twenty-three".