11412421 has 4 divisors (see below), whose sum is σ = 11419200. Its totient is φ = 11405644.

The previous prime is 11412403. The next prime is 11412431. The reversal of 11412421 is 12421411.

It is a happy number.

11412421 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12421411 = 151 ⋅82261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11412421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11412395 and 11412404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11412431) 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, 1290 + ... + 4948.

It is an arithmetic number, because the mean of its divisors is an integer number (2854800).

Almost surely, 2^11412421 is an apocalyptic number.

It is an amenable number.

11412421 is a deficient number, since it is larger than the sum of its proper divisors (6779).

11412421 is an equidigital number, since it uses as much as digits as its factorization.

11412421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778.

The product of its digits is 64, while the sum is 16.

The square root of 11412421 is about 3378.2274938198. The cubic root of 11412421 is about 225.1434213170.

Adding to 11412421 its reverse (12421411), we get a palindrome (23833832).

The spelling of 11412421 in words is "eleven million, four hundred twelve thousand, four hundred twenty-one".