11533400011 has 4 divisors (see below), whose sum is σ = 13181028592. Its totient is φ = 9885771432.

The previous prime is 11533399993. The next prime is 11533400023. The reversal of 11533400011 is 11000433511.

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 11533400011 - 2¹¹ = 11533397963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11533400111) 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, 823814280 + ... + 823814293.

It is an arithmetic number, because the mean of its divisors is an integer number (3295257148).

Almost surely, 2^11533400011 is an apocalyptic number.

11533400011 is a deficient number, since it is larger than the sum of its proper divisors (1647628581).

11533400011 is an equidigital number, since it uses as much as digits as its factorization.

11533400011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647628580.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 11533400011 its reverse (11000433511), we get a palindrome (22533833522).

The spelling of 11533400011 in words is "eleven billion, five hundred thirty-three million, four hundred thousand, eleven".