12030421 has 8 divisors (see below), whose sum is σ = 12983040. Its totient is φ = 11081712.

The previous prime is 12030419. The next prime is 12030433. The reversal of 12030421 is 12403021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12030421 - 2¹ = 12030419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10356 + ... + 11458.

It is an arithmetic number, because the mean of its divisors is an integer number (1622880).

Almost surely, 2^12030421 is an apocalyptic number.

It is an amenable number.

12030421 is a deficient number, since it is larger than the sum of its proper divisors (952619).

12030421 is a wasteful number, since it uses less digits than its factorization.

12030421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12030421 is about 3468.4897289743. The cubic root of 12030421 is about 229.1361483254.

Adding to 12030421 its reverse (12403021), we get a palindrome (24433442).

The spelling of 12030421 in words is "twelve million, thirty thousand, four hundred twenty-one".