20430442001 has 8 divisors (see below), whose sum is σ = 21329542080. Its totient is φ = 19532243632.

The previous prime is 20430441989. The next prime is 20430442031. The reversal of 20430442001 is 10024403402.

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

It is not a de Polignac number, because 20430442001 - 2³⁴ = 3250572817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20430442031) 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, 178910 + ... + 269943.

It is an arithmetic number, because the mean of its divisors is an integer number (2666192760).

Almost surely, 2^20430442001 is an apocalyptic number.

It is an amenable number.

20430442001 is a deficient number, since it is larger than the sum of its proper divisors (899100079).

20430442001 is a wasteful number, since it uses less digits than its factorization.

20430442001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450855.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20430442001 its reverse (10024403402), we get a palindrome (30454845403).

The spelling of 20430442001 in words is "twenty billion, four hundred thirty million, four hundred forty-two thousand, one".