20001200003 has 8 divisors (see below), whose sum is σ = 21055407120. Its totient is φ = 18947144160.

The previous prime is 20001199973. The next prime is 20001200047. The reversal of 20001200003 is 30000210002.

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

It is a cyclic number.

It is not a de Polignac number, because 20001200003 - 2¹⁶ = 20001134467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001200503) 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, 320933 + ... + 378153.

It is an arithmetic number, because the mean of its divisors is an integer number (2631925890).

Almost surely, 2^20001200003 is an apocalyptic number.

20001200003 is a deficient number, since it is larger than the sum of its proper divisors (1054207117).

20001200003 is a wasteful number, since it uses less digits than its factorization.

20001200003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75637.

The product of its (nonzero) digits is 12, while the sum is 8.

Adding to 20001200003 its reverse (30000210002), we get a palindrome (50001410005).

Subtracting 20001200003 from its reverse (30000210002), we obtain a palindrome (9999009999).

The spelling of 20001200003 in words is "twenty billion, one million, two hundred thousand, three".