20323011011 has 2 divisors, whose sum is σ = 20323011012. Its totient is φ = 20323011010.

The previous prime is 20323010993. The next prime is 20323011109. The reversal of 20323011011 is 11011032302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20323011011 - 2¹⁸ = 20322748867 is a prime.

It is not a weakly prime, because it can be changed into another prime (20323071011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161505505 + 10161505506.

It is an arithmetic number, because the mean of its divisors is an integer number (10161505506).

Almost surely, 2^20323011011 is an apocalyptic number.

20323011011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323011011 is an equidigital number, since it uses as much as digits as its factorization.

20323011011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20323011011 its reverse (11011032302), we get a palindrome (31334043313).

The spelling of 20323011011 in words is "twenty billion, three hundred twenty-three million, eleven thousand, eleven".