13021213 has 8 divisors (see below), whose sum is σ = 13759200. Its totient is φ = 12288528.

The previous prime is 13021207. The next prime is 13021219. The reversal of 13021213 is 31212031.

It is an interprime number because it is at equal distance from previous prime (13021207) and next prime (13021219).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13021213 - 2²¹ = 10924061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13021193 and 13021202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4398 + ... + 6736.

It is an arithmetic number, because the mean of its divisors is an integer number (1719900).

Almost surely, 2^13021213 is an apocalyptic number.

It is an amenable number.

13021213 is a deficient number, since it is larger than the sum of its proper divisors (737987).

13021213 is a wasteful number, since it uses less digits than its factorization.

13021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13021213 is about 3608.4917902082. The cubic root of 13021213 is about 235.2612937901.

Adding to 13021213 its reverse (31212031), we get a palindrome (44233244).

The spelling of 13021213 in words is "thirteen million, twenty-one thousand, two hundred thirteen".