13012042013 has 4 divisors (see below), whose sum is σ = 13015476348. Its totient is φ = 13008607680.

The previous prime is 13012042003. The next prime is 13012042019. The reversal of 13012042013 is 31024021031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5122694329 + 7889347684 = 71573^2 + 88822^2 .

It is a cyclic number.

It is not a de Polignac number, because 13012042013 - 2⁴ = 13012041997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13012041982 and 13012042000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012042019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1711478 + ... + 1719063.

It is an arithmetic number, because the mean of its divisors is an integer number (3253869087).

Almost surely, 2^13012042013 is an apocalyptic number.

It is an amenable number.

13012042013 is a deficient number, since it is larger than the sum of its proper divisors (3434335).

13012042013 is an equidigital number, since it uses as much as digits as its factorization.

13012042013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434334.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13012042013 its reverse (31024021031), we get a palindrome (44036063044).

The spelling of 13012042013 in words is "thirteen billion, twelve million, forty-two thousand, thirteen".