20311010011 has 2 divisors, whose sum is σ = 20311010012. Its totient is φ = 20311010010.

The previous prime is 20311009987. The next prime is 20311010017. The reversal of 20311010011 is 11001011302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20311010011 - 2¹⁵ = 20310977243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20311010011.

It is not a weakly prime, because it can be changed into another prime (20311010017) 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, 10155505005 + 10155505006.

It is an arithmetic number, because the mean of its divisors is an integer number (10155505006).

Almost surely, 2^20311010011 is an apocalyptic number.

20311010011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20311010011 is an equidigital number, since it uses as much as digits as its factorization.

20311010011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 20311010011 its reverse (11001011302), we get a palindrome (31312021313).

The spelling of 20311010011 in words is "twenty billion, three hundred eleven million, ten thousand, eleven".