13531010111 has 4 divisors (see below), whose sum is σ = 13702288800. Its totient is φ = 13359731424.

The previous prime is 13531010093. The next prime is 13531010131. The reversal of 13531010111 is 11101013531.

It is a happy number.

13531010111 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13531010111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13531010111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531010131) 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, 85639226 + ... + 85639383.

It is an arithmetic number, because the mean of its divisors is an integer number (3425572200).

Almost surely, 2^13531010111 is an apocalyptic number.

13531010111 is a deficient number, since it is larger than the sum of its proper divisors (171278689).

13531010111 is an equidigital number, since it uses as much as digits as its factorization.

13531010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171278688.

The product of its (nonzero) digits is 45, while the sum is 17.

Adding to 13531010111 its reverse (11101013531), we get a palindrome (24632023642).

The spelling of 13531010111 in words is "thirteen billion, five hundred thirty-one million, ten thousand, one hundred eleven".