13011323113 has 4 divisors (see below), whose sum is σ = 13012308868. Its totient is φ = 13010337360.

The previous prime is 13011323093. The next prime is 13011323137. The reversal of 13011323113 is 31132311031.

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 7785768169 + 5225554944 = 88237^2 + 72288^2 .

It is a cyclic number.

It is not a de Polignac number, because 13011323113 - 2²¹ = 13009225961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13011324113) 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, 472806 + ... + 499567.

It is an arithmetic number, because the mean of its divisors is an integer number (3253077217).

Almost surely, 2^13011323113 is an apocalyptic number.

It is an amenable number.

13011323113 is a deficient number, since it is larger than the sum of its proper divisors (985755).

13011323113 is an equidigital number, since it uses as much as digits as its factorization.

13011323113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985754.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13011323113 its reverse (31132311031), we get a palindrome (44143634144).

The spelling of 13011323113 in words is "thirteen billion, eleven million, three hundred twenty-three thousand, one hundred thirteen".