2320441021 has 2 divisors, whose sum is σ = 2320441022. Its totient is φ = 2320441020.

The previous prime is 2320441007. The next prime is 2320441073. The reversal of 2320441021 is 1201440232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1831412025 + 489028996 = 42795^2 + 22114^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320441021 - 2⁹ = 2320440509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2320441021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2320441091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160220510 + 1160220511.

It is an arithmetic number, because the mean of its divisors is an integer number (1160220511).

Almost surely, 2^2320441021 is an apocalyptic number.

It is an amenable number.

2320441021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320441021 is an equidigital number, since it uses as much as digits as its factorization.

2320441021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2320441021 is about 48170.9561976924. The cubic root of 2320441021 is about 1323.9050683343.

Adding to 2320441021 its reverse (1201440232), we get a palindrome (3521881253).

The spelling of 2320441021 in words is "two billion, three hundred twenty million, four hundred forty-one thousand, twenty-one".