12433013 has 4 divisors (see below), whose sum is σ = 12468588. Its totient is φ = 12397440.

The previous prime is 12433009. The next prime is 12433021. The reversal of 12433013 is 31033421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8773444 + 3659569 = 2962^2 + 1913^2 .

It is a cyclic number.

It is not a de Polignac number, because 12433013 - 2² = 12433009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12432982 and 12433000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12433093) 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, 17258 + ... + 17963.

It is an arithmetic number, because the mean of its divisors is an integer number (3117147).

Almost surely, 2^12433013 is an apocalyptic number.

It is an amenable number.

12433013 is a deficient number, since it is larger than the sum of its proper divisors (35575).

12433013 is an equidigital number, since it uses as much as digits as its factorization.

12433013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35574.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 12433013 is about 3526.0477875378. The cubic root of 12433013 is about 231.6641307683.

Adding to 12433013 its reverse (31033421), we get a palindrome (43466434).

The spelling of 12433013 in words is "twelve million, four hundred thirty-three thousand, thirteen".