20003328311 has 2 divisors, whose sum is σ = 20003328312. Its totient is φ = 20003328310.

The previous prime is 20003328299. The next prime is 20003328377. The reversal of 20003328311 is 11382330002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20003328311 is a prime.

It is a super-2 number, since 2×20003328311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20003321311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001664155 + 10001664156.

It is an arithmetic number, because the mean of its divisors is an integer number (10001664156).

Almost surely, 2^20003328311 is an apocalyptic number.

20003328311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003328311 is an equidigital number, since it uses as much as digits as its factorization.

20003328311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20003328311 its reverse (11382330002), we get a palindrome (31385658313).

The spelling of 20003328311 in words is "twenty billion, three million, three hundred twenty-eight thousand, three hundred eleven".