12421053 has 8 divisors (see below), whose sum is σ = 18401600. Its totient is φ = 8280684.

The previous prime is 12421051. The next prime is 12421061. The reversal of 12421053 is 35012421.

It is not a de Polignac number, because 12421053 - 2¹ = 12421051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421051) 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, 229993 + ... + 230046.

It is an arithmetic number, because the mean of its divisors is an integer number (2300200).

Almost surely, 2^12421053 is an apocalyptic number.

It is an amenable number.

12421053 is a deficient number, since it is larger than the sum of its proper divisors (5980547).

12421053 is an equidigital number, since it uses as much as digits as its factorization.

12421053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460048 (or 460042 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12421053 is about 3524.3514296960. The cubic root of 12421053 is about 231.5898234407.

Adding to 12421053 its reverse (35012421), we get a palindrome (47433474).

The spelling of 12421053 in words is "twelve million, four hundred twenty-one thousand, fifty-three".