20109232321 has 8 divisors (see below), whose sum is σ = 20665951488. Its totient is φ = 19555668000.

The previous prime is 20109232277. The next prime is 20109232333. The reversal of 20109232321 is 12323290102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20109232321 - 2⁷ = 20109232193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20109232621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775785 + ... + 801286.

It is an arithmetic number, because the mean of its divisors is an integer number (2583243936).

Almost surely, 2^20109232321 is an apocalyptic number.

It is an amenable number.

20109232321 is a deficient number, since it is larger than the sum of its proper divisors (556719167).

20109232321 is a wasteful number, since it uses less digits than its factorization.

20109232321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577423.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 20109232321 in words is "twenty billion, one hundred nine million, two hundred thirty-two thousand, three hundred twenty-one".