13020013 has 4 divisors (see below), whose sum is σ = 13322848. Its totient is φ = 12717180.

The previous prime is 13019999. The next prime is 13020017. The reversal of 13020013 is 31002031.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31002031 = 751 ⋅41281.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13020013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020017) 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, 151353 + ... + 151438.

It is an arithmetic number, because the mean of its divisors is an integer number (3330712).

Almost surely, 2^13020013 is an apocalyptic number.

It is an amenable number.

13020013 is a deficient number, since it is larger than the sum of its proper divisors (302835).

13020013 is an equidigital number, since it uses as much as digits as its factorization.

13020013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302834.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 13020013 is about 3608.3255119238. The cubic root of 13020013 is about 235.2540665519.

Adding to 13020013 its reverse (31002031), we get a palindrome (44022044).

The spelling of 13020013 in words is "thirteen million, twenty thousand, thirteen".