2320211021 has 2 divisors, whose sum is σ = 2320211022. Its totient is φ = 2320211020.

The previous prime is 2320210999. The next prime is 2320211029. The reversal of 2320211021 is 1201120232.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1617165796 + 703045225 = 40214^2 + 26515^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320211021 - 2¹⁴ = 2320194637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2320210987 and 2320211005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2320211029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160105510 + 1160105511.

It is an arithmetic number, because the mean of its divisors is an integer number (1160105511).

Almost surely, 2^2320211021 is an apocalyptic number.

It is an amenable number.

2320211021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320211021 is an equidigital number, since it uses as much as digits as its factorization.

2320211021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2320211021 is about 48168.5688078855. The cubic root of 2320211021 is about 1323.8613254676.

Adding to 2320211021 its reverse (1201120232), we get a palindrome (3521331253).

The spelling of 2320211021 in words is "two billion, three hundred twenty million, two hundred eleven thousand, twenty-one".