20330331332 has 24 divisors (see below), whose sum is σ = 36826657560. Its totient is φ = 9808843520.

The previous prime is 20330331313. The next prime is 20330331377. The reversal of 20330331332 is 23313303302.

It can be written as a sum of positive squares in 4 ways, for example, as 6167903296 + 14162428036 = 78536^2 + 119006^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20330331298 and 20330331307.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 148718 + ... + 250554.

It is an arithmetic number, because the mean of its divisors is an integer number (1534444065).

Almost surely, 2^20330331332 is an apocalyptic number.

It is an amenable number.

20330331332 is a deficient number, since it is larger than the sum of its proper divisors (16496326228).

20330331332 is a wasteful number, since it uses less digits than its factorization.

20330331332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103591 (or 103589 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 23.

Adding to 20330331332 its reverse (23313303302), we get a palindrome (43643634634).

The spelling of 20330331332 in words is "twenty billion, three hundred thirty million, three hundred thirty-one thousand, three hundred thirty-two".