10821031 has 8 divisors (see below), whose sum is σ = 12055680. Its totient is φ = 9643872.

The previous prime is 10821001. The next prime is 10821037. The reversal of 10821031 is 13012801.

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 10821031 - 2⁷ = 10820903 is a prime.

It is a super-2 number, since 2×10821031² = 234189423805922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10820996 and 10821014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10821037) 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, 13975 + ... + 14728.

It is an arithmetic number, because the mean of its divisors is an integer number (1506960).

Almost surely, 2^10821031 is an apocalyptic number.

10821031 is a deficient number, since it is larger than the sum of its proper divisors (1234649).

10821031 is a wasteful number, since it uses less digits than its factorization.

10821031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28745.

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

The square root of 10821031 is about 3289.5335535604. The cubic root of 10821031 is about 221.1852762682.

Adding to 10821031 its reverse (13012801), we get a palindrome (23833832).

It can be divided in two parts, 108210 and 31, that added together give a square (108241 = 329²).

The spelling of 10821031 in words is "ten million, eight hundred twenty-one thousand, thirty-one".