812234119171 has 4 divisors (see below), whose sum is σ = 815812243272. Its totient is φ = 808655995072.

The previous prime is 812234119129. The next prime is 812234119181. The reversal of 812234119171 is 171911432218.

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 812234119171 - 2¹⁹ = 812233594883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812234119121) 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 in 3 ways as a sum of consecutive naturals, for example, 1789061710 + ... + 1789062163.

It is an arithmetic number, because the mean of its divisors is an integer number (203953060818).

Almost surely, 2^812234119171 is an apocalyptic number.

812234119171 is a deficient number, since it is larger than the sum of its proper divisors (3578124101).

812234119171 is a wasteful number, since it uses less digits than its factorization.

812234119171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578124100.

The product of its digits is 24192, while the sum is 40.

The spelling of 812234119171 in words is "eight hundred twelve billion, two hundred thirty-four million, one hundred nineteen thousand, one hundred seventy-one".