103221329 has 2 divisors, whose sum is σ = 103221330. Its totient is φ = 103221328.

The previous prime is 103221323. The next prime is 103221337. The reversal of 103221329 is 923122301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102921025 + 300304 = 10145^2 + 548^2 .

It is a cyclic number.

It is not a de Polignac number, because 103221329 - 2⁸ = 103221073 is a prime.

It is not a weakly prime, because it can be changed into another prime (103221323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51610664 + 51610665.

It is an arithmetic number, because the mean of its divisors is an integer number (51610665).

Almost surely, 2^103221329 is an apocalyptic number.

It is an amenable number.

103221329 is a deficient number, since it is larger than the sum of its proper divisors (1).

103221329 is an equidigital number, since it uses as much as digits as its factorization.

103221329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 103221329 is about 10159.7898108179. The cubic root of 103221329 is about 469.0903319503.

The spelling of 103221329 in words is "one hundred three million, two hundred twenty-one thousand, three hundred twenty-nine".