102123210011 has 2 divisors, whose sum is σ = 102123210012. Its totient is φ = 102123210010.

The previous prime is 102123210001. The next prime is 102123210061. The reversal of 102123210011 is 110012321201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102123210011 is a prime.

It is not a weakly prime, because it can be changed into another prime (102123210001) 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, 51061605005 + 51061605006.

It is an arithmetic number, because the mean of its divisors is an integer number (51061605006).

Almost surely, 2^102123210011 is an apocalyptic number.

102123210011 is a deficient number, since it is larger than the sum of its proper divisors (1).

102123210011 is an equidigital number, since it uses as much as digits as its factorization.

102123210011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 102123210011 its reverse (110012321201), we get a palindrome (212135531212).

It can be divided in two parts, 10212 and 3210011, that added together give a palindrome (3220223).

The spelling of 102123210011 in words is "one hundred two billion, one hundred twenty-three million, two hundred ten thousand, eleven".