13533521113 has 4 divisors (see below), whose sum is σ = 15466881280. Its totient is φ = 11600160948.

The previous prime is 13533521101. The next prime is 13533521119. The reversal of 13533521113 is 31112533531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13533521113 - 2⁵ = 13533521081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13533521119) 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, 966680073 + ... + 966680086.

It is an arithmetic number, because the mean of its divisors is an integer number (3866720320).

Almost surely, 2^13533521113 is an apocalyptic number.

It is an amenable number.

13533521113 is a deficient number, since it is larger than the sum of its proper divisors (1933360167).

13533521113 is an equidigital number, since it uses as much as digits as its factorization.

13533521113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933360166.

The product of its digits is 4050, while the sum is 28.

The spelling of 13533521113 in words is "thirteen billion, five hundred thirty-three million, five hundred twenty-one thousand, one hundred thirteen".