20303321001 has 24 divisors (see below), whose sum is σ = 28463237376. Its totient is φ = 12872032800.

The previous prime is 20303320997. The next prime is 20303321011. The reversal of 20303321001 is 10012330302.

It is not a de Polignac number, because 20303321001 - 2² = 20303320997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20303321011) 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 23 ways as a sum of consecutive naturals, for example, 237576 + ... + 311526.

It is an arithmetic number, because the mean of its divisors is an integer number (1185968224).

Almost surely, 2^20303321001 is an apocalyptic number.

It is an amenable number.

20303321001 is a deficient number, since it is larger than the sum of its proper divisors (8159916375).

20303321001 is a wasteful number, since it uses less digits than its factorization.

20303321001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74173 (or 74150 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20303321001 its reverse (10012330302), we get a palindrome (30315651303).

The spelling of 20303321001 in words is "twenty billion, three hundred three million, three hundred twenty-one thousand, one".