20302224409 has 4 divisors (see below), whose sum is σ = 20530339380. Its totient is φ = 20074109440.

The previous prime is 20302224401. The next prime is 20302224419. The reversal of 20302224409 is 90442220302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5172486400 + 15129738009 = 71920^2 + 123003^2 .

It is a cyclic number.

It is not a de Polignac number, because 20302224409 - 2³ = 20302224401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302224401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114057352 + ... + 114057529.

It is an arithmetic number, because the mean of its divisors is an integer number (5132584845).

Almost surely, 2^20302224409 is an apocalyptic number.

It is an amenable number.

20302224409 is a deficient number, since it is larger than the sum of its proper divisors (228114971).

20302224409 is an equidigital number, since it uses as much as digits as its factorization.

20302224409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228114970.

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 20302224409 in words is "twenty billion, three hundred two million, two hundred twenty-four thousand, four hundred nine".