20003030001 has 16 divisors (see below), whose sum is σ = 30264633600. Its totient is φ = 13051621584.

The previous prime is 20003029999. The next prime is 20003030039. The reversal of 20003030001 is 10003030002.

It is a happy number.

It is not a de Polignac number, because 20003030001 - 2¹ = 20003029999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20003030051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7880146 + ... + 7882683.

It is an arithmetic number, because the mean of its divisors is an integer number (1891539600).

Almost surely, 2^20003030001 is an apocalyptic number.

It is an amenable number.

20003030001 is a deficient number, since it is larger than the sum of its proper divisors (10261603599).

20003030001 is a wasteful number, since it uses less digits than its factorization.

20003030001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15762885 (or 15762879 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

Adding to 20003030001 its reverse (10003030002), we get a palindrome (30006060003).

Subtracting from 20003030001 its reverse (10003030002), we obtain a palindrome (9999999999).

The spelling of 20003030001 in words is "twenty billion, three million, thirty thousand, one".