12373421 has 4 divisors (see below), whose sum is σ = 12583200. Its totient is φ = 12163644.

The previous prime is 12373397. The next prime is 12373441. The reversal of 12373421 is 12437321.

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.

It is a cyclic number.

It is not a de Polignac number, because 12373421 - 2⁶ = 12373357 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 (12373441) 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, 104801 + ... + 104918.

It is an arithmetic number, because the mean of its divisors is an integer number (3145800).

Almost surely, 2^12373421 is an apocalyptic number.

It is an amenable number.

12373421 is a deficient number, since it is larger than the sum of its proper divisors (209779).

12373421 is an equidigital number, since it uses as much as digits as its factorization.

12373421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209778.

The product of its digits is 1008, while the sum is 23.

The square root of 12373421 is about 3517.5873834206. The cubic root of 12373421 is about 231.2934122540.

The spelling of 12373421 in words is "twelve million, three hundred seventy-three thousand, four hundred twenty-one".