10856111 has 4 divisors (see below), whose sum is σ = 12406992. Its totient is φ = 9305232.

The previous prime is 10856099. The next prime is 10856117. The reversal of 10856111 is 11165801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11165801 = 829 ⋅13469.

It is a cyclic number.

It is not a de Polignac number, because 10856111 - 2¹⁰ = 10855087 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 (10856117) 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, 775430 + ... + 775443.

It is an arithmetic number, because the mean of its divisors is an integer number (3101748).

Almost surely, 2^10856111 is an apocalyptic number.

10856111 is a deficient number, since it is larger than the sum of its proper divisors (1550881).

10856111 is an equidigital number, since it uses as much as digits as its factorization.

10856111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550880.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 10856111 is about 3294.8613020885. The cubic root of 10856111 is about 221.4240338597.

The spelling of 10856111 in words is "ten million, eight hundred fifty-six thousand, one hundred eleven".