11312305 has 4 divisors (see below), whose sum is σ = 13574772. Its totient is φ = 9049840.

The previous prime is 11312281. The next prime is 11312333. The reversal of 11312305 is 50321311.

11312305 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4941729 + 6370576 = 2223^2 + 2524^2 .

It is not a de Polignac number, because 11312305 - 2⁷ = 11312177 is a prime.

It is a super-3 number, since 3×11312305³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian 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, 1131226 + ... + 1131235.

It is an arithmetic number, because the mean of its divisors is an integer number (3393693).

Almost surely, 2^11312305 is an apocalyptic number.

It is an amenable number.

11312305 is a deficient number, since it is larger than the sum of its proper divisors (2262467).

11312305 is an equidigital number, since it uses as much as digits as its factorization.

11312305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262466.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 11312305 is about 3363.3770231718. The cubic root of 11312305 is about 224.4831262956.

Adding to 11312305 its reverse (50321311), we get a palindrome (61633616).

The spelling of 11312305 in words is "eleven million, three hundred twelve thousand, three hundred five".