20013030221003 has 4 divisors (see below), whose sum is σ = 20036220291648. Its totient is φ = 19989840150360.

The previous prime is 20013030220993. The next prime is 20013030221011. The reversal of 20013030221003 is 30012203031002.

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 20013030221003 - 2²⁶ = 20012963112139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013030211003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11595034028 + ... + 11595035753.

It is an arithmetic number, because the mean of its divisors is an integer number (5009055072912).

Almost surely, 2^{20013030221003} is an apocalyptic number.

20013030221003 is a deficient number, since it is larger than the sum of its proper divisors (23190070645).

20013030221003 is an equidigital number, since it uses as much as digits as its factorization.

20013030221003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23190070644.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20013030221003 its reverse (30012203031002), we get a palindrome (50025233252005).

The spelling of 20013030221003 in words is "twenty trillion, thirteen billion, thirty million, two hundred twenty-one thousand, three".