11323305505 has 32 divisors (see below), whose sum is σ = 13867344000. Its totient is φ = 8875077120.

The previous prime is 11323305479. The next prime is 11323305527. The reversal of 11323305505 is 50550332311.

It is not a de Polignac number, because 11323305505 - 2¹¹ = 11323303457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22691746 + ... + 22692244.

It is an arithmetic number, because the mean of its divisors is an integer number (433354500).

Almost surely, 2^11323305505 is an apocalyptic number.

It is an amenable number.

11323305505 is a deficient number, since it is larger than the sum of its proper divisors (2544038495).

11323305505 is a wasteful number, since it uses less digits than its factorization.

11323305505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009.

The product of its (nonzero) digits is 6750, while the sum is 28.

Adding to 11323305505 its reverse (50550332311), we get a palindrome (61873637816).

The spelling of 11323305505 in words is "eleven billion, three hundred twenty-three million, three hundred five thousand, five hundred five".