13530135305 has 4 divisors (see below), whose sum is σ = 16236162372. Its totient is φ = 10824108240.

The previous prime is 13530135301. The next prime is 13530135323. The reversal of 13530135305 is 50353103531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50353103531 = 83639 ⋅602029.

It can be written as a sum of positive squares in 2 ways, for example, as 3510325504 + 10019809801 = 59248^2 + 100099^2 .

It is not a de Polignac number, because 13530135305 - 2² = 13530135301 is a prime.

It is a super-2 number, since 2×13530135305² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13530135301) 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, 1353013526 + ... + 1353013535.

It is an arithmetic number, because the mean of its divisors is an integer number (4059040593).

Almost surely, 2^13530135305 is an apocalyptic number.

It is an amenable number.

13530135305 is a deficient number, since it is larger than the sum of its proper divisors (2706027067).

13530135305 is an equidigital number, since it uses as much as digits as its factorization.

13530135305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706027066.

The product of its (nonzero) digits is 10125, while the sum is 29.

Adding to 13530135305 its reverse (50353103531), we get a palindrome (63883238836).

The spelling of 13530135305 in words is "thirteen billion, five hundred thirty million, one hundred thirty-five thousand, three hundred five".