13043213 has 4 divisors (see below), whose sum is σ = 13050780. Its totient is φ = 13035648.

The previous prime is 13043183. The next prime is 13043221. The reversal of 13043213 is 31234031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31234031 = 37 ⋅844163.

It can be written as a sum of positive squares in 2 ways, for example, as 11437924 + 1605289 = 3382^2 + 1267^2 .

It is a cyclic number.

It is not a de Polignac number, because 13043213 - 2²⁰ = 11994637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13043191 and 13043200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13048213) 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, 203 + ... + 5111.

It is an arithmetic number, because the mean of its divisors is an integer number (3262695).

Almost surely, 2^13043213 is an apocalyptic number.

It is an amenable number.

13043213 is a deficient number, since it is larger than the sum of its proper divisors (7567).

13043213 is an equidigital number, since it uses as much as digits as its factorization.

13043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7566.

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

The square root of 13043213 is about 3611.5388686819. The cubic root of 13043213 is about 235.3937145382.

Adding to 13043213 its reverse (31234031), we get a palindrome (44277244).

The spelling of 13043213 in words is "thirteen million, forty-three thousand, two hundred thirteen".