220023203009 has 4 divisors (see below), whose sum is σ = 220160633220. Its totient is φ = 219885772800.

The previous prime is 220023203003. The next prime is 220023203089. The reversal of 220023203009 is 900302320022.

220023203009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 185325945025 + 34697257984 = 430495^2 + 186272^2 .

It is a cyclic number.

It is not a de Polignac number, because 220023203009 - 2³² = 215728235713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220023203003) 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 3 ways as a sum of consecutive naturals, for example, 68712704 + ... + 68715905.

It is an arithmetic number, because the mean of its divisors is an integer number (55040158305).

Almost surely, 2^220023203009 is an apocalyptic number.

It is an amenable number.

220023203009 is a deficient number, since it is larger than the sum of its proper divisors (137430211).

220023203009 is a wasteful number, since it uses less digits than its factorization.

220023203009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137430210.

The product of its (nonzero) digits is 1296, while the sum is 23.

The spelling of 220023203009 in words is "two hundred twenty billion, twenty-three million, two hundred three thousand, nine".