32020320009 has 4 divisors (see below), whose sum is σ = 42693760016. Its totient is φ = 21346880004.

The previous prime is 32020319987. The next prime is 32020320049. The reversal of 32020320009 is 90002302023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90002302023 = 3 ⋅30000767341.

It is not a de Polignac number, because 32020320009 - 2⁵ = 32020319977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32020320049) 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, 5336719999 + ... + 5336720004.

It is an arithmetic number, because the mean of its divisors is an integer number (10673440004).

Almost surely, 2^32020320009 is an apocalyptic number.

It is an amenable number.

32020320009 is a deficient number, since it is larger than the sum of its proper divisors (10673440007).

32020320009 is a wasteful number, since it uses less digits than its factorization.

32020320009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10673440006.

The product of its (nonzero) digits is 648, while the sum is 21.

The spelling of 32020320009 in words is "thirty-two billion, twenty million, three hundred twenty thousand, nine".