118732313993 has 4 divisors (see below), whose sum is σ = 118740943428. Its totient is φ = 118723684560.

The previous prime is 118732313969. The next prime is 118732314011. The reversal of 118732313993 is 399313237811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 399313237811 = 23747 ⋅16815313.

It can be written as a sum of positive squares in 2 ways, for example, as 40123294864 + 78609019129 = 200308^2 + 280373^2 .

It is a cyclic number.

It is not a de Polignac number, because 118732313993 - 2¹⁶ = 118732248457 is a prime.

It is a super-2 number, since 2×118732313993² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118732313093) 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, 4294046 + ... + 4321607.

It is an arithmetic number, because the mean of its divisors is an integer number (29685235857).

Almost surely, 2^118732313993 is an apocalyptic number.

It is an amenable number.

118732313993 is a deficient number, since it is larger than the sum of its proper divisors (8629435).

118732313993 is an equidigital number, since it uses as much as digits as its factorization.

118732313993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8629434.

The product of its digits is 734832, while the sum is 50.

The spelling of 118732313993 in words is "one hundred eighteen billion, seven hundred thirty-two million, three hundred thirteen thousand, nine hundred ninety-three".