20423320001 has 16 divisors (see below), whose sum is σ = 25070832000. Its totient is φ = 16584344784.

The previous prime is 20423319941. The next prime is 20423320013. The reversal of 20423320001 is 10002332402.

It is not a de Polignac number, because 20423320001 - 2³⁴ = 3243450817 is a prime.

It is a super-2 number, since 2×20423320001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20423320031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1560410 + ... + 1573443.

It is an arithmetic number, because the mean of its divisors is an integer number (1566927000).

Almost surely, 2^20423320001 is an apocalyptic number.

It is an amenable number.

20423320001 is a deficient number, since it is larger than the sum of its proper divisors (4647511999).

20423320001 is an equidigital number, since it uses as much as digits as its factorization.

20423320001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133893 (or 3133879 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20423320001 its reverse (10002332402), we get a palindrome (30425652403).

The spelling of 20423320001 in words is "twenty billion, four hundred twenty-three million, three hundred twenty thousand, one".