12424213 has 4 divisors (see below), whose sum is σ = 12434368. Its totient is φ = 12414060.

The previous prime is 12424201. The next prime is 12424231. The reversal of 12424213 is 31242421.

12424213 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 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: 31242421 = 7 ⋅4463203.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12424213 is a prime.

It is a super-2 number, since 2×12424213² = 308722137338738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12424813) 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, 2943 + ... + 5788.

It is an arithmetic number, because the mean of its divisors is an integer number (3108592).

Almost surely, 2^12424213 is an apocalyptic number.

It is an amenable number.

12424213 is a deficient number, since it is larger than the sum of its proper divisors (10155).

12424213 is an equidigital number, since it uses as much as digits as its factorization.

12424213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10154.

The product of its digits is 384, while the sum is 19.

The square root of 12424213 is about 3524.7997106219. The cubic root of 12424213 is about 231.6094611153.

Adding to 12424213 its reverse (31242421), we get a palindrome (43666634).

The spelling of 12424213 in words is "twelve million, four hundred twenty-four thousand, two hundred thirteen".