13021013 has 4 divisors (see below), whose sum is σ = 13587168. Its totient is φ = 12454860.

The previous prime is 13021009. The next prime is 13021027. The reversal of 13021013 is 31012031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13021013 - 2² = 13021009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13020985 and 13021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021033) 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, 283043 + ... + 283088.

It is an arithmetic number, because the mean of its divisors is an integer number (3396792).

Almost surely, 2^13021013 is an apocalyptic number.

It is an amenable number.

13021013 is a deficient number, since it is larger than the sum of its proper divisors (566155).

13021013 is an equidigital number, since it uses as much as digits as its factorization.

13021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566154.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 13021013 is about 3608.4640776929. The cubic root of 13021013 is about 235.2600892812.

Adding to 13021013 its reverse (31012031), we get a palindrome (44033044).

The spelling of 13021013 in words is "thirteen million, twenty-one thousand, thirteen".