11143221303 has 4 divisors (see below), whose sum is σ = 14857628408. Its totient is φ = 7428814200.

The previous prime is 11143221301. The next prime is 11143221317. The reversal of 11143221303 is 30312234111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11143221303 - 2¹ = 11143221301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11143221303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143221301) 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, 1857203548 + ... + 1857203553.

It is an arithmetic number, because the mean of its divisors is an integer number (3714407102).

Almost surely, 2^11143221303 is an apocalyptic number.

11143221303 is a deficient number, since it is larger than the sum of its proper divisors (3714407105).

11143221303 is an equidigital number, since it uses as much as digits as its factorization.

11143221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714407104.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11143221303 its reverse (30312234111), we get a palindrome (41455455414).

The spelling of 11143221303 in words is "eleven billion, one hundred forty-three million, two hundred twenty-one thousand, three hundred three".