2300420240021 has 2 divisors, whose sum is σ = 2300420240022. Its totient is φ = 2300420240020.

The previous prime is 2300420239979. The next prime is 2300420240029. The reversal of 2300420240021 is 1200420240032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1571939212900 + 728481027121 = 1253770^2 + 853511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2300420240021 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 = 2300420239975 and 2300420240002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2300420240029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1150210120010 + 1150210120011.

It is an arithmetic number, because the mean of its divisors is an integer number (1150210120011).

Almost surely, 2^{2300420240021} is an apocalyptic number.

It is an amenable number.

2300420240021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2300420240021 is an equidigital number, since it uses as much as digits as its factorization.

2300420240021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 2300420240021 its reverse (1200420240032), we get a palindrome (3500840480053).

The spelling of 2300420240021 in words is "two trillion, three hundred billion, four hundred twenty million, two hundred forty thousand, twenty-one".