20203320033 has 12 divisors (see below), whose sum is σ = 31427386900. Its totient is φ = 12432812256.

The previous prime is 20203319957. The next prime is 20203320073. The reversal of 20203320033 is 33002330202.

It can be written as a sum of positive squares in 2 ways, for example, as 2189116944 + 18014203089 = 46788^2 + 134217^2 .

It is not a de Polignac number, because 20203320033 - 2¹⁰ = 20203319009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20203319988 and 20203320015.

It is not an unprimeable number, because it can be changed into a prime (20203320073) 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, 86338858 + ... + 86339091.

Almost surely, 2^20203320033 is an apocalyptic number.

It is an amenable number.

20203320033 is a deficient number, since it is larger than the sum of its proper divisors (11224066867).

20203320033 is a wasteful number, since it uses less digits than its factorization.

20203320033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172677968 (or 172677965 counting only the distinct ones).

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

Adding to 20203320033 its reverse (33002330202), we get a palindrome (53205650235).

The spelling of 20203320033 in words is "twenty billion, two hundred three million, three hundred twenty thousand, thirty-three".