11141421 has 4 divisors (see below), whose sum is σ = 14855232. Its totient is φ = 7427612.

The previous prime is 11141401. The next prime is 11141437. The reversal of 11141421 is 12414111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11141421 - 2⁶ = 11141357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11141421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11141401) 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, 1856901 + ... + 1856906.

It is an arithmetic number, because the mean of its divisors is an integer number (3713808).

Almost surely, 2^11141421 is an apocalyptic number.

It is an amenable number.

11141421 is a deficient number, since it is larger than the sum of its proper divisors (3713811).

11141421 is an equidigital number, since it uses as much as digits as its factorization.

11141421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713810.

The product of its digits is 32, while the sum is 15.

The square root of 11141421 is about 3337.8767203119. The cubic root of 11141421 is about 223.3470368562.

Adding to 11141421 its reverse (12414111), we get a palindrome (23555532).

The spelling of 11141421 in words is "eleven million, one hundred forty-one thousand, four hundred twenty-one".