11320350405 has 128 divisors (see below), whose sum is σ = 23939629056. Its totient is φ = 4431974400.

The previous prime is 11320350341. The next prime is 11320350413. The reversal of 11320350405 is 50405302311.

It is not a de Polignac number, because 11320350405 - 2⁶ = 11320350341 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 1644120 + ... + 1650990.

It is an arithmetic number, because the mean of its divisors is an integer number (187028352).

Almost surely, 2^11320350405 is an apocalyptic number.

11320350405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11320350405 is an abundant number, since it is smaller than the sum of its proper divisors (12619278651).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11320350405 is a wasteful number, since it uses less digits than its factorization.

11320350405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6987.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 11320350405 its reverse (50405302311), we get a palindrome (61725652716).

The spelling of 11320350405 in words is "eleven billion, three hundred twenty million, three hundred fifty thousand, four hundred five".