10871021 has 8 divisors (see below), whose sum is σ = 13078080. Its totient is φ = 8827488.

The previous prime is 10871017. The next prime is 10871039. The reversal of 10871021 is 12017801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10871021 - 2² = 10871017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10870984 and 10871002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10871011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40736 + ... + 41001.

It is an arithmetic number, because the mean of its divisors is an integer number (1634760).

Almost surely, 2^10871021 is an apocalyptic number.

It is an amenable number.

10871021 is a deficient number, since it is larger than the sum of its proper divisors (2207059).

10871021 is an equidigital number, since it uses as much as digits as its factorization.

10871021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81763.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 10871021 is about 3297.1231399509. The cubic root of 10871021 is about 221.5253568866.

Adding to 10871021 its reverse (12017801), we get a palindrome (22888822).

The spelling of 10871021 in words is "ten million, eight hundred seventy-one thousand, twenty-one".