20304000331 has 2 divisors, whose sum is σ = 20304000332. Its totient is φ = 20304000330.

The previous prime is 20304000323. The next prime is 20304000383. The reversal of 20304000331 is 13300040302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20304000331 - 2³ = 20304000323 is a prime.

It is a super-4 number, since 4×20304000331⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (20304040331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10152000165 + 10152000166.

It is an arithmetic number, because the mean of its divisors is an integer number (10152000166).

Almost surely, 2^20304000331 is an apocalyptic number.

20304000331 is a deficient number, since it is larger than the sum of its proper divisors (1).

20304000331 is an equidigital number, since it uses as much as digits as its factorization.

20304000331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20304000331 its reverse (13300040302), we get a palindrome (33604040633).

The spelling of 20304000331 in words is "twenty billion, three hundred four million, three hundred thirty-one", and thus it is an aban number.