20303202033 has 12 divisors (see below), whose sum is σ = 29390469108. Its totient is φ = 13506104160.

The previous prime is 20303202013. The next prime is 20303202061. The reversal of 20303202033 is 33020230302.

It can be written as a sum of positive squares in 2 ways, for example, as 13094682624 + 7208519409 = 114432^2 + 84903^2 .

It is not a de Polignac number, because 20303202033 - 2³³ = 11713267441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20303201997 and 20303202015.

It is not an unprimeable number, because it can be changed into a prime (20303202013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2442610 + ... + 2450907.

It is an arithmetic number, because the mean of its divisors is an integer number (2449205759).

Almost surely, 2^20303202033 is an apocalyptic number.

It is an amenable number.

20303202033 is a deficient number, since it is larger than the sum of its proper divisors (9087267075).

20303202033 is a wasteful number, since it uses less digits than its factorization.

20303202033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893984 (or 4893981 counting only the distinct ones).

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

Adding to 20303202033 its reverse (33020230302), we get a palindrome (53323432335).

The spelling of 20303202033 in words is "twenty billion, three hundred three million, two hundred two thousand, thirty-three".