201311013221303 has 4 divisors (see below), whose sum is σ = 201331288285440. Its totient is φ = 201290738157168.

The previous prime is 201311013221281. The next prime is 201311013221317. The reversal of 201311013221303 is 303122310113102.

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 201311013221303 - 2¹⁰ = 201311013220279 is a prime.

It is a super-2 number, since 2×201311013221303² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201311013226303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10137517175 + ... + 10137537032.

It is an arithmetic number, because the mean of its divisors is an integer number (50332822071360).

Almost surely, 2^{201311013221303} is an apocalyptic number.

201311013221303 is a deficient number, since it is larger than the sum of its proper divisors (20275064137).

201311013221303 is an equidigital number, since it uses as much as digits as its factorization.

201311013221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20275064136.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 201311013221303 its reverse (303122310113102), we get a palindrome (504433323334405).

The spelling of 201311013221303 in words is "two hundred one trillion, three hundred eleven billion, thirteen million, two hundred twenty-one thousand, three hundred three".