118191208873 has 2 divisors, whose sum is σ = 118191208874. Its totient is φ = 118191208872.

The previous prime is 118191208801. The next prime is 118191208897. The reversal of 118191208873 is 378802191811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95574959104 + 22616249769 = 309152^2 + 150387^2 .

It is an emirp because it is prime and its reverse (378802191811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118191208873 - 2¹³ = 118191200681 is a prime.

It is a super-2 number, since 2×118191208873² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (118191208573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59095604436 + 59095604437.

It is an arithmetic number, because the mean of its divisors is an integer number (59095604437).

Almost surely, 2^118191208873 is an apocalyptic number.

It is an amenable number.

118191208873 is a deficient number, since it is larger than the sum of its proper divisors (1).

118191208873 is an equidigital number, since it uses as much as digits as its factorization.

118191208873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 49.

The spelling of 118191208873 in words is "one hundred eighteen billion, one hundred ninety-one million, two hundred eight thousand, eight hundred seventy-three".