12405020011 has 2 divisors, whose sum is σ = 12405020012. Its totient is φ = 12405020010.

The previous prime is 12405020009. The next prime is 12405020027. The reversal of 12405020011 is 11002050421.

It is an a-pointer prime, because the next prime (12405020027) can be obtained adding 12405020011 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12405020011 - 2¹ = 12405020009 is a prime.

Together with 12405020009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12405020041) 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, 6202510005 + 6202510006.

It is an arithmetic number, because the mean of its divisors is an integer number (6202510006).

Almost surely, 2^12405020011 is an apocalyptic number.

12405020011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12405020011 is an equidigital number, since it uses as much as digits as its factorization.

12405020011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 12405020011 its reverse (11002050421), we get a palindrome (23407070432).

The spelling of 12405020011 in words is "twelve billion, four hundred five million, twenty thousand, eleven".