20030223203201 has 4 divisors (see below), whose sum is σ = 20030359193904. Its totient is φ = 20030087212500.

The previous prime is 20030223203161. The next prime is 20030223203203. The reversal of 20030223203201 is 10230232203002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20030223203201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20030223203203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67774175 + ... + 68069076.

It is an arithmetic number, because the mean of its divisors is an integer number (5007589798476).

Almost surely, 2^{20030223203201} is an apocalyptic number.

It is an amenable number.

20030223203201 is a deficient number, since it is larger than the sum of its proper divisors (135990703).

20030223203201 is a wasteful number, since it uses less digits than its factorization.

20030223203201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135990702.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20030223203201 its reverse (10230232203002), we get a palindrome (30260455406203).

The spelling of 20030223203201 in words is "twenty trillion, thirty billion, two hundred twenty-three million, two hundred three thousand, two hundred one".