11421303 has 4 divisors (see below), whose sum is σ = 15228408. Its totient is φ = 7614200.

The previous prime is 11421269. The next prime is 11421323. The reversal of 11421303 is 30312411.

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 11421303 - 2⁹ = 11420791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421323) 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, 1903548 + ... + 1903553.

It is an arithmetic number, because the mean of its divisors is an integer number (3807102).

Almost surely, 2^11421303 is an apocalyptic number.

11421303 is a deficient number, since it is larger than the sum of its proper divisors (3807105).

11421303 is an equidigital number, since it uses as much as digits as its factorization.

11421303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807104.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 11421303 is about 3379.5418328525. The cubic root of 11421303 is about 225.2018139903.

Adding to 11421303 its reverse (30312411), we get a palindrome (41733714).

The spelling of 11421303 in words is "eleven million, four hundred twenty-one thousand, three hundred three".