11312200305 has 48 divisors (see below), whose sum is σ = 22427094144. Its totient is φ = 5167100160.

The previous prime is 11312200181. The next prime is 11312200351. The reversal of 11312200305 is 50300221311.

It is not a de Polignac number, because 11312200305 - 2¹⁰ = 11312199281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 392757 + ... + 420573.

It is an arithmetic number, because the mean of its divisors is an integer number (467231128).

Almost surely, 2^11312200305 is an apocalyptic number.

11312200305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11312200305 is a deficient number, since it is larger than the sum of its proper divisors (11114893839).

11312200305 is a wasteful number, since it uses less digits than its factorization.

11312200305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29126 (or 29123 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 11312200305 its reverse (50300221311), we get a palindrome (61612421616).

The spelling of 11312200305 in words is "eleven billion, three hundred twelve million, two hundred thousand, three hundred five".