20330320203 has 12 divisors (see below), whose sum is σ = 29367312520. Its totient is φ = 13552949376.

The previous prime is 20330320183. The next prime is 20330320237. The reversal of 20330320203 is 30202303302.

It is not a de Polignac number, because 20330320203 - 2¹³ = 20330312011 is a prime.

It is a super-2 number, since 2×20330320203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20330320303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282363 + ... + 346971.

Almost surely, 2^20330320203 is an apocalyptic number.

20330320203 is a deficient number, since it is larger than the sum of its proper divisors (9036992317).

20330320203 is a wasteful number, since it uses less digits than its factorization.

20330320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99578 (or 99575 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

Adding to 20330320203 its reverse (30202303302), we get a palindrome (50532623505).

The spelling of 20330320203 in words is "twenty billion, three hundred thirty million, three hundred twenty thousand, two hundred three".