4450001321 has 2 divisors, whose sum is σ = 4450001322. Its totient is φ = 4450001320.

The previous prime is 4450001293. The next prime is 4450001341. The reversal of 4450001321 is 1231000544.

It is an a-pointer prime, because the next prime (4450001341) can be obtained adding 4450001321 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3174082921 + 1275918400 = 56339^2 + 35720^2 .

It is a cyclic number.

It is not a de Polignac number, because 4450001321 - 2¹⁴ = 4449984937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4450001293 and 4450001302.

It is not a weakly prime, because it can be changed into another prime (4450001341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2225000660 + 2225000661.

It is an arithmetic number, because the mean of its divisors is an integer number (2225000661).

Almost surely, 2^4450001321 is an apocalyptic number.

It is an amenable number.

4450001321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4450001321 is an equidigital number, since it uses as much as digits as its factorization.

4450001321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4450001321 is about 66708.3302219445. The cubic root of 4450001321 is about 1644.8263193111.

Adding to 4450001321 its reverse (1231000544), we get a palindrome (5681001865).

The spelling of 4450001321 in words is "four billion, four hundred fifty million, one thousand, three hundred twenty-one".