11430221303 has 4 divisors (see below), whose sum is σ = 12102587280. Its totient is φ = 10757855328.

The previous prime is 11430221279. The next prime is 11430221329. The reversal of 11430221303 is 30312203411.

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 11430221303 - 2²⁴ = 11413444087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11430221333) 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, 336182963 + ... + 336182996.

It is an arithmetic number, because the mean of its divisors is an integer number (3025646820).

Almost surely, 2^11430221303 is an apocalyptic number.

11430221303 is a deficient number, since it is larger than the sum of its proper divisors (672365977).

11430221303 is an equidigital number, since it uses as much as digits as its factorization.

11430221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672365976.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 11430221303 its reverse (30312203411), we get a palindrome (41742424714).

The spelling of 11430221303 in words is "eleven billion, four hundred thirty million, two hundred twenty-one thousand, three hundred three".