118412843361 has 4 divisors (see below), whose sum is σ = 157883791152. Its totient is φ = 78941895572.

The previous prime is 118412843261. The next prime is 118412843387. The reversal of 118412843361 is 163348214811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 163348214811 = 3 ⋅54449404937.

It is a cyclic number.

It is not a de Polignac number, because 118412843361 - 2¹⁹ = 118412319073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118412843261) 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, 19735473891 + ... + 19735473896.

It is an arithmetic number, because the mean of its divisors is an integer number (39470947788).

Almost surely, 2^118412843361 is an apocalyptic number.

It is an amenable number.

118412843361 is a deficient number, since it is larger than the sum of its proper divisors (39470947791).

118412843361 is an equidigital number, since it uses as much as digits as its factorization.

118412843361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39470947790.

The product of its digits is 110592, while the sum is 42.

The spelling of 118412843361 in words is "one hundred eighteen billion, four hundred twelve million, eight hundred forty-three thousand, three hundred sixty-one".