213871118873 has 8 divisors (see below), whose sum is σ = 219593481576. Its totient is φ = 208172851200.

The previous prime is 213871118861. The next prime is 213871118899. The reversal of 213871118873 is 378811178312.

213871118873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5348289424 + 208522829449 = 73132^2 + 456643^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213871118873 - 2¹⁸ = 213870856729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213871118173) 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 7 ways as a sum of consecutive naturals, for example, 6005768 + ... + 6041273.

It is an arithmetic number, because the mean of its divisors is an integer number (27449185197).

Almost surely, 2^213871118873 is an apocalyptic number.

It is an amenable number.

213871118873 is a deficient number, since it is larger than the sum of its proper divisors (5722362703).

213871118873 is a wasteful number, since it uses less digits than its factorization.

213871118873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12047515.

The product of its digits is 451584, while the sum is 50.

The spelling of 213871118873 in words is "two hundred thirteen billion, eight hundred seventy-one million, one hundred eighteen thousand, eight hundred seventy-three".