103430321 has 2 divisors, whose sum is σ = 103430322. Its totient is φ = 103430320.

The previous prime is 103430309. The next prime is 103430347. The reversal of 103430321 is 123034301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101284096 + 2146225 = 10064^2 + 1465^2 .

It is a cyclic number.

It is not a de Polignac number, because 103430321 - 2¹⁰ = 103429297 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 103430321.

It is not a weakly prime, because it can be changed into another prime (103432321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51715160 + 51715161.

It is an arithmetic number, because the mean of its divisors is an integer number (51715161).

Almost surely, 2^103430321 is an apocalyptic number.

It is an amenable number.

103430321 is a deficient number, since it is larger than the sum of its proper divisors (1).

103430321 is an equidigital number, since it uses as much as digits as its factorization.

103430321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 103430321 is about 10170.0698621003. The cubic root of 103430321 is about 469.4067072492.

Adding to 103430321 its reverse (123034301), we get a palindrome (226464622).

The spelling of 103430321 in words is "one hundred three million, four hundred thirty thousand, three hundred twenty-one".