10921323 has 8 divisors (see below), whose sum is σ = 16642048. Its totient is φ = 6240744.

The previous prime is 10921321. The next prime is 10921363. The reversal of 10921323 is 32312901.

It is a happy number.

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

It is not a de Polignac number, because 10921323 - 2¹ = 10921321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 520063 = 10921323 / (1 + 0 + 9 + 2 + 1 + 3 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10921323.

It is not an unprimeable number, because it can be changed into a prime (10921321) 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, 260011 + ... + 260052.

It is an arithmetic number, because the mean of its divisors is an integer number (2080256).

Almost surely, 2^10921323 is an apocalyptic number.

10921323 is a deficient number, since it is larger than the sum of its proper divisors (5720725).

10921323 is an equidigital number, since it uses as much as digits as its factorization.

10921323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520073.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 10921323 is about 3304.7425013153. The cubic root of 10921323 is about 221.8665093094.

It can be divided in two parts, 1092 and 1323, that added together give a triangular number (2415 = T₆₉).

The spelling of 10921323 in words is "ten million, nine hundred twenty-one thousand, three hundred twenty-three".