10805311 has 4 divisors (see below), whose sum is σ = 11787624. Its totient is φ = 9823000.

The previous prime is 10805309. The next prime is 10805317. The reversal of 10805311 is 11350801.

10805311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10805311 - 2¹ = 10805309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10805317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491140 + ... + 491161.

It is an arithmetic number, because the mean of its divisors is an integer number (2946906).

Almost surely, 2^10805311 is an apocalyptic number.

10805311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10805311 is a deficient number, since it is larger than the sum of its proper divisors (982313).

10805311 is an equidigital number, since it uses as much as digits as its factorization.

10805311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982312.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 10805311 is about 3287.1432886322. The cubic root of 10805311 is about 221.0781171127.

Subtracting 10805311 from its reverse (11350801), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 10805311 in words is "ten million, eight hundred five thousand, three hundred eleven".