101230321 has 2 divisors, whose sum is σ = 101230322. Its totient is φ = 101230320.

The previous prime is 101230319. The next prime is 101230333. The reversal of 101230321 is 123032101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100400400 + 829921 = 10020^2 + 911^2 .

It is an emirp because it is prime and its reverse (123032101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101230321 - 2¹ = 101230319 is a prime.

Together with 101230319, it forms a pair of twin primes.

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

It is not a weakly prime, because it can be changed into another prime (101230301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50615160 + 50615161.

It is an arithmetic number, because the mean of its divisors is an integer number (50615161).

Almost surely, 2^101230321 is an apocalyptic number.

It is an amenable number.

101230321 is a deficient number, since it is larger than the sum of its proper divisors (1).

101230321 is an equidigital number, since it uses as much as digits as its factorization.

101230321 is an evil number, because the sum of its binary digits is even.

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

The square root of 101230321 is about 10061.3279938585. The cubic root of 101230321 is about 466.0546777743.

Adding to 101230321 its reverse (123032101), we get a palindrome (224262422).

The spelling of 101230321 in words is "one hundred one million, two hundred thirty thousand, three hundred twenty-one".