20345328001 has 4 divisors (see below), whose sum is σ = 20351116372. Its totient is φ = 20339539632.

The previous prime is 20345327917. The next prime is 20345328007. The reversal of 20345328001 is 10082354302.

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 9362497600 + 10982830401 = 96760^2 + 104799^2 .

It is a cyclic number.

It is not a de Polignac number, because 20345328001 - 2¹⁷ = 20345196929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20345328007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2888910 + ... + 2895943.

It is an arithmetic number, because the mean of its divisors is an integer number (5087779093).

Almost surely, 2^20345328001 is an apocalyptic number.

It is an amenable number.

20345328001 is a deficient number, since it is larger than the sum of its proper divisors (5788371).

20345328001 is an equidigital number, since it uses as much as digits as its factorization.

20345328001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5788370.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 20345328001 in words is "twenty billion, three hundred forty-five million, three hundred twenty-eight thousand, one".