10123321 has 4 divisors (see below), whose sum is σ = 10902052. Its totient is φ = 9344592.

The previous prime is 10123319. The next prime is 10123327. The reversal of 10123321 is 12332101.

10123321 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12332101 = 727 ⋅16963.

It can be written as a sum of positive squares in 2 ways, for example, as 4145296 + 5978025 = 2036^2 + 2445^2 .

It is a cyclic number.

It is not a de Polignac number, because 10123321 - 2¹ = 10123319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 778717 = 10123321 / (1 + 0 + 1 + 2 + 3 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10123327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389346 + ... + 389371.

It is an arithmetic number, because the mean of its divisors is an integer number (2725513).

Almost surely, 2^10123321 is an apocalyptic number.

It is an amenable number.

10123321 is a deficient number, since it is larger than the sum of its proper divisors (778731).

10123321 is an equidigital number, since it uses as much as digits as its factorization.

10123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778730.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 10123321 is about 3181.7166750042. The cubic root of 10123321 is about 216.3254766775.

Adding to 10123321 its reverse (12332101), we get a palindrome (22455422).

The spelling of 10123321 in words is "ten million, one hundred twenty-three thousand, three hundred twenty-one".