10831021 has 2 divisors, whose sum is σ = 10831022. Its totient is φ = 10831020.

The previous prime is 10831001. The next prime is 10831031. The reversal of 10831021 is 12013801.

10831021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5929225 + 4901796 = 2435^2 + 2214^2 .

It is a cyclic number.

It is not a de Polignac number, because 10831021 - 2⁹ = 10830509 is a prime.

It is a super-2 number, since 2×10831021² = 234622031804882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10830986 and 10831004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10831001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5415510 + 5415511.

It is an arithmetic number, because the mean of its divisors is an integer number (5415511).

Almost surely, 2^10831021 is an apocalyptic number.

It is an amenable number.

10831021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10831021 is an equidigital number, since it uses as much as digits as its factorization.

10831021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 10831021 is about 3291.0516556262. The cubic root of 10831021 is about 221.2533215797.

Adding to 10831021 its reverse (12013801), we get a palindrome (22844822).

The spelling of 10831021 in words is "ten million, eight hundred thirty-one thousand, twenty-one".