20316308611 has 2 divisors, whose sum is σ = 20316308612. Its totient is φ = 20316308610.

The previous prime is 20316308557. The next prime is 20316308633. The reversal of 20316308611 is 11680361302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20316308611 is a prime.

It is not a weakly prime, because it can be changed into another prime (20316318611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10158154305 + 10158154306.

It is an arithmetic number, because the mean of its divisors is an integer number (10158154306).

Almost surely, 2^20316308611 is an apocalyptic number.

20316308611 is a deficient number, since it is larger than the sum of its proper divisors (1).

20316308611 is an equidigital number, since it uses as much as digits as its factorization.

20316308611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

Adding to 20316308611 its reverse (11680361302), we get a palindrome (31996669913).

The spelling of 20316308611 in words is "twenty billion, three hundred sixteen million, three hundred eight thousand, six hundred eleven".