20021230303 has 8 divisors (see below), whose sum is σ = 20226066336. Its totient is φ = 19816524000.

The previous prime is 20021230241. The next prime is 20021230319. The reversal of 20021230303 is 30303212002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20021230303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021230403) 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, 294550 + ... + 356092.

It is an arithmetic number, because the mean of its divisors is an integer number (2528258292).

Almost surely, 2^20021230303 is an apocalyptic number.

20021230303 is a deficient number, since it is larger than the sum of its proper divisors (204836033).

20021230303 is a wasteful number, since it uses less digits than its factorization.

20021230303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64865.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20021230303 its reverse (30303212002), we get a palindrome (50324442305).

The spelling of 20021230303 in words is "twenty billion, twenty-one million, two hundred thirty thousand, three hundred three".