12421411 has 4 divisors (see below), whose sum is σ = 12503824. Its totient is φ = 12339000.

The previous prime is 12421399. The next prime is 12421417. The reversal of 12421411 is 11412421.

It is a happy number.

12421411 is digitally balanced in base 2, because in such base 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 an emirpimes, since its reverse is a distinct semiprime: 11412421 = 3119 ⋅3659.

It is a cyclic number.

It is not a de Polignac number, because 12421411 - 2¹⁷ = 12290339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12421417) 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, 40980 + ... + 41281.

It is an arithmetic number, because the mean of its divisors is an integer number (3125956).

Almost surely, 2^12421411 is an apocalyptic number.

12421411 is a deficient number, since it is larger than the sum of its proper divisors (82413).

12421411 is an equidigital number, since it uses as much as digits as its factorization.

12421411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82412.

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

The square root of 12421411 is about 3524.4022188167. The cubic root of 12421411 is about 231.5920483825.

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

The spelling of 12421411 in words is "twelve million, four hundred twenty-one thousand, four hundred eleven".