11235113513 has 4 divisors (see below), whose sum is σ = 12099353028. Its totient is φ = 10370874000.

The previous prime is 11235113507. The next prime is 11235113587. The reversal of 11235113513 is 31531153211.

It is a happy number.

11235113513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 6901787929 + 4333325584 = 83077^2 + 65828^2 .

It is a cyclic number.

It is not a de Polignac number, because 11235113513 - 2²⁶ = 11168004649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11235613513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432119738 + ... + 432119763.

It is an arithmetic number, because the mean of its divisors is an integer number (3024838257).

Almost surely, 2^11235113513 is an apocalyptic number.

11235113513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11235113513 is a deficient number, since it is larger than the sum of its proper divisors (864239515).

11235113513 is an equidigital number, since it uses as much as digits as its factorization.

11235113513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864239514.

The product of its digits is 1350, while the sum is 26.

Adding to 11235113513 its reverse (31531153211), we get a palindrome (42766266724).

The spelling of 11235113513 in words is "eleven billion, two hundred thirty-five million, one hundred thirteen thousand, five hundred thirteen".