13247022013 has 4 divisors (see below), whose sum is σ = 14026258620. Its totient is φ = 12467785408.

The previous prime is 13247022011. The next prime is 13247022029. The reversal of 13247022013 is 31022074231.

It is a happy number.

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 11479408164 + 1767613849 = 107142^2 + 42043^2 .

It is a cyclic number.

It is not a de Polignac number, because 13247022013 - 2¹ = 13247022011 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 (13247022011) 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, 389618278 + ... + 389618311.

It is an arithmetic number, because the mean of its divisors is an integer number (3506564655).

Almost surely, 2^13247022013 is an apocalyptic number.

It is an amenable number.

13247022013 is a deficient number, since it is larger than the sum of its proper divisors (779236607).

13247022013 is an equidigital number, since it uses as much as digits as its factorization.

13247022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779236606.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 13247022013 its reverse (31022074231), we get a palindrome (44269096244).

The spelling of 13247022013 in words is "thirteen billion, two hundred forty-seven million, twenty-two thousand, thirteen".