12421023 has 16 divisors (see below), whose sum is σ = 17191680. Its totient is φ = 7971264.

The previous prime is 12421021. The next prime is 12421037. The reversal of 12421023 is 32012421.

12421023 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12421023 - 2¹ = 12421021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12420993 and 12421011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8758 + ... + 10076.

It is an arithmetic number, because the mean of its divisors is an integer number (1074480).

Almost surely, 2^12421023 is an apocalyptic number.

12421023 is a deficient number, since it is larger than the sum of its proper divisors (4770657).

12421023 is a wasteful number, since it uses less digits than its factorization.

12421023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12421023 is about 3524.3471735912. The cubic root of 12421023 is about 231.5896369912.

Adding to 12421023 its reverse (32012421), we get a palindrome (44433444).

The spelling of 12421023 in words is "twelve million, four hundred twenty-one thousand, twenty-three".