10011321 has 6 divisors (see below), whose sum is σ = 14460810. Its totient is φ = 6674208.

The previous prime is 10011307. The next prime is 10011359. The reversal of 10011321 is 12311001.

It can be written as a sum of positive squares in only one way, i.e., 7868025 + 2143296 = 2805^2 + 1464^2 .

It is not a de Polignac number, because 10011321 - 2⁵ = 10011289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1112369 = 10011321 / (1 + 0 + 0 + 1 + 1 + 3 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011301) 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 in 5 ways as a sum of consecutive naturals, for example, 556176 + ... + 556193.

It is an arithmetic number, because the mean of its divisors is an integer number (2410135).

Almost surely, 2^10011321 is an apocalyptic number.

It is an amenable number.

10011321 is a deficient number, since it is larger than the sum of its proper divisors (4449489).

10011321 is a wasteful number, since it uses less digits than its factorization.

10011321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112375 (or 1112372 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 10011321 is about 3164.0671611077. The cubic root of 10011321 is about 215.5247395259.

Adding to 10011321 its reverse (12311001), we get a palindrome (22322322).

The spelling of 10011321 in words is "ten million, eleven thousand, three hundred twenty-one".