13531115235 has 64 divisors (see below), whose sum is σ = 25097693184. Its totient is φ = 6152294400.

The previous prime is 13531115219. The next prime is 13531115261. The reversal of 13531115235 is 53251113531.

13531115235 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13531115235 - 2⁴ = 13531115219 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 779622 + ... + 796788.

It is an arithmetic number, because the mean of its divisors is an integer number (392151456).

Almost surely, 2^13531115235 is an apocalyptic number.

13531115235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13531115235 is a deficient number, since it is larger than the sum of its proper divisors (11566577949).

13531115235 is a wasteful number, since it uses less digits than its factorization.

13531115235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17484.

The product of its digits is 6750, while the sum is 30.

Adding to 13531115235 its reverse (53251113531), we get a palindrome (66782228766).

The spelling of 13531115235 in words is "thirteen billion, five hundred thirty-one million, one hundred fifteen thousand, two hundred thirty-five".