11321242205405 has 16 divisors (see below), whose sum is σ = 15221090260224. Its totient is φ = 8011100134080.

The previous prime is 11321242205363. The next prime is 11321242205437. The reversal of 11321242205405 is 50450224212311.

It is not a de Polignac number, because 11321242205405 - 2⁴² = 6923195694301 is a prime.

It is a super-2 number, since 2×11321242205405² (a number of 27 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 2781629957 + ... + 2781634026.

It is an arithmetic number, because the mean of its divisors is an integer number (951318141264).

Almost surely, 2^{11321242205405} is an apocalyptic number.

It is an amenable number.

11321242205405 is a deficient number, since it is larger than the sum of its proper divisors (3899848054819).

11321242205405 is a wasteful number, since it uses less digits than its factorization.

11321242205405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563264036.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 11321242205405 its reverse (50450224212311), we get a palindrome (61771466417716).

The spelling of 11321242205405 in words is "eleven trillion, three hundred twenty-one billion, two hundred forty-two million, two hundred five thousand, four hundred five".