12401233 has 4 divisors (see below), whose sum is σ = 13355188. Its totient is φ = 11447280.

The previous prime is 12401189. The next prime is 12401251. The reversal of 12401233 is 33210421.

It is a happy number.

12401233 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33210421 = 3449 ⋅9629.

It can be written as a sum of positive squares in 2 ways, for example, as 786769 + 11614464 = 887^2 + 3408^2 .

It is not a de Polignac number, because 12401233 - 2⁹ = 12400721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12401293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476958 + ... + 476983.

It is an arithmetic number, because the mean of its divisors is an integer number (3338797).

Almost surely, 2^12401233 is an apocalyptic number.

12401233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12401233 is a deficient number, since it is larger than the sum of its proper divisors (953955).

12401233 is an equidigital number, since it uses as much as digits as its factorization.

12401233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953954.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12401233 is about 3521.5384422153. The cubic root of 12401233 is about 231.4665769411.

Adding to 12401233 its reverse (33210421), we get a palindrome (45611654).

The spelling of 12401233 in words is "twelve million, four hundred one thousand, two hundred thirty-three".