102043321 has 8 divisors (see below), whose sum is σ = 103455464. Its totient is φ = 100638720.

The previous prime is 102043313. The next prime is 102043327. The reversal of 102043321 is 123340201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2143296 + 99900025 = 1464^2 + 9995^2 .

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 102043321 - 2³ = 102043313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102043295 and 102043304.

It is not an unprimeable number, because it can be changed into a prime (102043327) 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, 28681 + ... + 32041.

It is an arithmetic number, because the mean of its divisors is an integer number (12931933).

Almost surely, 2^102043321 is an apocalyptic number.

It is an amenable number.

102043321 is a deficient number, since it is larger than the sum of its proper divisors (1412143).

102043321 is an equidigital number, since it uses as much as digits as its factorization.

102043321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 102043321 is about 10101.6494197730. The cubic root of 102043321 is about 467.2990105166.

Adding to 102043321 its reverse (123340201), we get a palindrome (225383522).

The spelling of 102043321 in words is "one hundred two million, forty-three thousand, three hundred twenty-one".