12412403 has 4 divisors (see below), whose sum is σ = 12468288. Its totient is φ = 12356520.

The previous prime is 12412399. The next prime is 12412447. The reversal of 12412403 is 30421421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30421421 = 811 ⋅37511.

It is a cyclic number.

It is not a de Polignac number, because 12412403 - 2² = 12412399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12412483) 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, 27608 + ... + 28053.

It is an arithmetic number, because the mean of its divisors is an integer number (3117072).

Almost surely, 2^12412403 is an apocalyptic number.

12412403 is a deficient number, since it is larger than the sum of its proper divisors (55885).

12412403 is an equidigital number, since it uses as much as digits as its factorization.

12412403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55884.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12412403 is about 3523.1240398260. The cubic root of 12412403 is about 231.5360513713.

Adding to 12412403 its reverse (30421421), we get a palindrome (42833824).

The spelling of 12412403 in words is "twelve million, four hundred twelve thousand, four hundred three".