4405013321 has 2 divisors, whose sum is σ = 4405013322. Its totient is φ = 4405013320.

The previous prime is 4405013303. The next prime is 4405013323. The reversal of 4405013321 is 1233105044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2739475600 + 1665537721 = 52340^2 + 40811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4405013321 is a prime.

Together with 4405013323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4405013323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2202506660 + 2202506661.

It is an arithmetic number, because the mean of its divisors is an integer number (2202506661).

Almost surely, 2^4405013321 is an apocalyptic number.

It is an amenable number.

4405013321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4405013321 is an equidigital number, since it uses as much as digits as its factorization.

4405013321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 4405013321 is about 66370.2743779171. The cubic root of 4405013321 is about 1639.2646565792.

Adding to 4405013321 its reverse (1233105044), we get a palindrome (5638118365).

The spelling of 4405013321 in words is "four billion, four hundred five million, thirteen thousand, three hundred twenty-one".