13533531011 has 16 divisors (see below), whose sum is σ = 18170896128. Its totient is φ = 9734407200.

The previous prime is 13533530999. The next prime is 13533531013. The reversal of 13533531011 is 11013533531.

It is not a de Polignac number, because 13533531011 - 2²⁶ = 13466422147 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13533531013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6759005 + ... + 6761006.

It is an arithmetic number, because the mean of its divisors is an integer number (1135681008).

Almost surely, 2^13533531011 is an apocalyptic number.

13533531011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13533531011 is a deficient number, since it is larger than the sum of its proper divisors (4637365117).

13533531011 is a wasteful number, since it uses less digits than its factorization.

13533531011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13520042.

The product of its (nonzero) digits is 2025, while the sum is 26.

The spelling of 13533531011 in words is "thirteen billion, five hundred thirty-three million, five hundred thirty-one thousand, eleven".