20239329601 has 4 divisors (see below), whose sum is σ = 20239851604. Its totient is φ = 20238807600.

The previous prime is 20239329589. The next prime is 20239329611. The reversal of 20239329601 is 10692393202.

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 10359168400 + 9880161201 = 101780^2 + 99399^2 .

It is a cyclic number.

It is not a de Polignac number, because 20239329601 - 2¹¹ = 20239327553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20239329611) 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, 197730 + ... + 282091.

It is an arithmetic number, because the mean of its divisors is an integer number (5059962901).

Almost surely, 2^20239329601 is an apocalyptic number.

It is an amenable number.

20239329601 is a deficient number, since it is larger than the sum of its proper divisors (522003).

20239329601 is an equidigital number, since it uses as much as digits as its factorization.

20239329601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522002.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 20239329601 in words is "twenty billion, two hundred thirty-nine million, three hundred twenty-nine thousand, six hundred one".