13531450011 has 4 divisors (see below), whose sum is σ = 18041933352. Its totient is φ = 9020966672.

The previous prime is 13531450007. The next prime is 13531450027. The reversal of 13531450011 is 11005413531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13531450011 - 2² = 13531450007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13531400011) 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, 2255241666 + ... + 2255241671.

It is an arithmetic number, because the mean of its divisors is an integer number (4510483338).

Almost surely, 2^13531450011 is an apocalyptic number.

13531450011 is a deficient number, since it is larger than the sum of its proper divisors (4510483341).

13531450011 is an equidigital number, since it uses as much as digits as its factorization.

13531450011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510483340.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 13531450011 its reverse (11005413531), we get a palindrome (24536863542).

The spelling of 13531450011 in words is "thirteen billion, five hundred thirty-one million, four hundred fifty thousand, eleven".