12354810816211 has 4 divisors (see below), whose sum is σ = 12406075591624. Its totient is φ = 12303546040800.

The previous prime is 12354810816193. The next prime is 12354810816217. The reversal of 12354810816211 is 11261801845321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12354810816211 - 2²⁷ = 12354676598483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12354810816217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25632387345 + ... + 25632387826.

It is an arithmetic number, because the mean of its divisors is an integer number (3101518897906).

Almost surely, 2^{12354810816211} is an apocalyptic number.

12354810816211 is a deficient number, since it is larger than the sum of its proper divisors (51264775413).

12354810816211 is an equidigital number, since it uses as much as digits as its factorization.

12354810816211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51264775412.

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 12354810816211 in words is "twelve trillion, three hundred fifty-four billion, eight hundred ten million, eight hundred sixteen thousand, two hundred eleven".