20302211311 has 2 divisors, whose sum is σ = 20302211312. Its totient is φ = 20302211310.

The previous prime is 20302211287. The next prime is 20302211317. The reversal of 20302211311 is 11311220302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20302211311 - 2⁷ = 20302211183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20302211317) 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, 10151105655 + 10151105656.

It is an arithmetic number, because the mean of its divisors is an integer number (10151105656).

Almost surely, 2^20302211311 is an apocalyptic number.

20302211311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302211311 is an equidigital number, since it uses as much as digits as its factorization.

20302211311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20302211311 its reverse (11311220302), we get a palindrome (31613431613).

The spelling of 20302211311 in words is "twenty billion, three hundred two million, two hundred eleven thousand, three hundred eleven".