108191305039 has 4 divisors (see below), whose sum is σ = 108327054024. Its totient is φ = 108055556056.

The previous prime is 108191305031. The next prime is 108191305051. The reversal of 108191305039 is 930503191801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930503191801 = 59 ⋅15771240539.

It is a cyclic number.

It is not a de Polignac number, because 108191305039 - 2³ = 108191305031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108191304992 and 108191305010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108191305031) 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, 67873297 + ... + 67874890.

It is an arithmetic number, because the mean of its divisors is an integer number (27081763506).

Almost surely, 2^108191305039 is an apocalyptic number.

108191305039 is a deficient number, since it is larger than the sum of its proper divisors (135748985).

108191305039 is an equidigital number, since it uses as much as digits as its factorization.

108191305039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135748984.

The product of its (nonzero) digits is 29160, while the sum is 40.

The spelling of 108191305039 in words is "one hundred eight billion, one hundred ninety-one million, three hundred five thousand, thirty-nine".