4403113021 has 2 divisors, whose sum is σ = 4403113022. Its totient is φ = 4403113020.

The previous prime is 4403113019. The next prime is 4403113049. The reversal of 4403113021 is 1203113044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2488612996 + 1914500025 = 49886^2 + 43755^2 .

It is a cyclic number.

It is not a de Polignac number, because 4403113021 - 2¹ = 4403113019 is a prime.

Together with 4403113019, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4403113021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4403113081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2201556510 + 2201556511.

It is an arithmetic number, because the mean of its divisors is an integer number (2201556511).

Almost surely, 2^4403113021 is an apocalyptic number.

It is an amenable number.

4403113021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4403113021 is an equidigital number, since it uses as much as digits as its factorization.

4403113021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4403113021 is about 66355.9569368116. The cubic root of 4403113021 is about 1639.0288992385.

Adding to 4403113021 its reverse (1203113044), we get a palindrome (5606226065).

The spelling of 4403113021 in words is "four billion, four hundred three million, one hundred thirteen thousand, twenty-one".