118321317823 has 4 divisors (see below), whose sum is σ = 125281395360. Its totient is φ = 111361240288.

The previous prime is 118321317817. The next prime is 118321317853. The reversal of 118321317823 is 328713123811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328713123811 = 1543 ⋅213035077.

It is a cyclic number.

It is not a de Polignac number, because 118321317823 - 2²¹ = 118319220671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118321317853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3480038743 + ... + 3480038776.

It is an arithmetic number, because the mean of its divisors is an integer number (31320348840).

Almost surely, 2^118321317823 is an apocalyptic number.

118321317823 is a deficient number, since it is larger than the sum of its proper divisors (6960077537).

118321317823 is an equidigital number, since it uses as much as digits as its factorization.

118321317823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6960077536.

The product of its digits is 48384, while the sum is 40.

The spelling of 118321317823 in words is "one hundred eighteen billion, three hundred twenty-one million, three hundred seventeen thousand, eight hundred twenty-three".