11143415405 has 4 divisors (see below), whose sum is σ = 13372098492. Its totient is φ = 8914732320.

The previous prime is 11143415363. The next prime is 11143415417. The reversal of 11143415405 is 50451434111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50451434111 = 13 ⋅3880879547.

It can be written as a sum of positive squares in 2 ways, for example, as 3211375561 + 7932039844 = 56669^2 + 89062^2 .

It is not a de Polignac number, because 11143415405 - 2¹⁴ = 11143399021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114341536 + ... + 1114341545.

It is an arithmetic number, because the mean of its divisors is an integer number (3343024623).

Almost surely, 2^11143415405 is an apocalyptic number.

It is an amenable number.

11143415405 is a deficient number, since it is larger than the sum of its proper divisors (2228683087).

11143415405 is an equidigital number, since it uses as much as digits as its factorization.

11143415405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228683086.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 11143415405 its reverse (50451434111), we get a palindrome (61594849516).

The spelling of 11143415405 in words is "eleven billion, one hundred forty-three million, four hundred fifteen thousand, four hundred five".