12812811019 has 2 divisors, whose sum is σ = 12812811020. Its totient is φ = 12812811018.

The previous prime is 12812810981. The next prime is 12812811023. The reversal of 12812811019 is 91011821821.

It is a strong prime.

It is an emirp because it is prime and its reverse (91011821821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12812811019 - 2²⁹ = 12275940107 is a prime.

It is a super-2 number, since 2×12812811019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12812811029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6406405509 + 6406405510.

It is an arithmetic number, because the mean of its divisors is an integer number (6406405510).

Almost surely, 2^12812811019 is an apocalyptic number.

12812811019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12812811019 is an equidigital number, since it uses as much as digits as its factorization.

12812811019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 34.

The spelling of 12812811019 in words is "twelve billion, eight hundred twelve million, eight hundred eleven thousand, nineteen".