13541121311 has 4 divisors (see below), whose sum is σ = 13545352152. Its totient is φ = 13536890472.

The previous prime is 13541121289. The next prime is 13541121337. The reversal of 13541121311 is 11312114531.

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 13541121311 - 2⁶ = 13541121247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13541123311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2110616 + ... + 2117021.

It is an arithmetic number, because the mean of its divisors is an integer number (3386338038).

Almost surely, 2^13541121311 is an apocalyptic number.

13541121311 is a deficient number, since it is larger than the sum of its proper divisors (4230841).

13541121311 is an equidigital number, since it uses as much as digits as its factorization.

13541121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230840.

The product of its digits is 360, while the sum is 23.

Adding to 13541121311 its reverse (11312114531), we get a palindrome (24853235842).

The spelling of 13541121311 in words is "thirteen billion, five hundred forty-one million, one hundred twenty-one thousand, three hundred eleven".