20012230003 has 4 divisors (see below), whose sum is σ = 20049221728. Its totient is φ = 19975238280.

The previous prime is 20012229989. The next prime is 20012230031. The reversal of 20012230003 is 30003221002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20012230003 - 2²⁵ = 19978675571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012230033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18495051 + ... + 18496132.

It is an arithmetic number, because the mean of its divisors is an integer number (5012305432).

Almost surely, 2^20012230003 is an apocalyptic number.

20012230003 is a deficient number, since it is larger than the sum of its proper divisors (36991725).

20012230003 is an equidigital number, since it uses as much as digits as its factorization.

20012230003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36991724.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20012230003 its reverse (30003221002), we get a palindrome (50015451005).

Subtracting 20012230003 from its reverse (30003221002), we obtain a palindrome (9990990999).

The spelling of 20012230003 in words is "twenty billion, twelve million, two hundred thirty thousand, three".