13334021 has 2 divisors, whose sum is σ = 13334022. Its totient is φ = 13334020.

The previous prime is 13334017. The next prime is 13334053. The reversal of 13334021 is 12043331.

It is a happy number.

13334021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10144225 + 3189796 = 3185^2 + 1786^2 .

It is an emirp because it is prime and its reverse (12043331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13334021 - 2² = 13334017 is a prime.

It is a super-2 number, since 2×13334021² = 355592232056882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13334011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6667010 + 6667011.

It is an arithmetic number, because the mean of its divisors is an integer number (6667011).

Almost surely, 2^13334021 is an apocalyptic number.

It is an amenable number.

13334021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13334021 is an equidigital number, since it uses as much as digits as its factorization.

13334021 is an evil number, because the sum of its binary digits is even.

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

The square root of 13334021 is about 3651.5778781234. The cubic root of 13334021 is about 237.1302968242.

Adding to 13334021 its reverse (12043331), we get a palindrome (25377352).

The spelling of 13334021 in words is "thirteen million, three hundred thirty-four thousand, twenty-one".