2300505021 has 12 divisors (see below), whose sum is σ = 3323850972. Its totient is φ = 1533254976.

The previous prime is 2300505013. The next prime is 2300505023. The reversal of 2300505021 is 1205050032.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1060479225 + 1240025796 = 32565^2 + 35214^2 .

It is not a de Polignac number, because 2300505021 - 2³ = 2300505013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2300504985 and 2300505003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2300505023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2625 + ... + 67881.

It is an arithmetic number, because the mean of its divisors is an integer number (276987581).

Almost surely, 2^2300505021 is an apocalyptic number.

It is an amenable number.

2300505021 is a deficient number, since it is larger than the sum of its proper divisors (1023345951).

2300505021 is a wasteful number, since it uses less digits than its factorization.

2300505021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69180 (or 69177 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2300505021 is about 47963.5801520279. The cubic root of 2300505021 is about 1320.1027278866.

Adding to 2300505021 its reverse (1205050032), we get a palindrome (3505555053).

The spelling of 2300505021 in words is "two billion, three hundred million, five hundred five thousand, twenty-one".