13511115420011 has 8 divisors (see below), whose sum is σ = 14746380853248. Its totient is φ = 12277013689000.

The previous prime is 13511115420007. The next prime is 13511115420017. The reversal of 13511115420011 is 11002451111531.

It is a happy number.

13511115420011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13511115420011 - 2² = 13511115420007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13511115420017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290901275 + ... + 290947716.

It is an arithmetic number, because the mean of its divisors is an integer number (1843297606656).

Almost surely, 2^{13511115420011} is an apocalyptic number.

13511115420011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13511115420011 is a deficient number, since it is larger than the sum of its proper divisors (1235265433237).

13511115420011 is a wasteful number, since it uses less digits than its factorization.

13511115420011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581851113.

The product of its (nonzero) digits is 600, while the sum is 26.

Adding to 13511115420011 its reverse (11002451111531), we get a palindrome (24513566531542).

The spelling of 13511115420011 in words is "thirteen trillion, five hundred eleven billion, one hundred fifteen million, four hundred twenty thousand, eleven".