31108103512193 has 4 divisors (see below), whose sum is σ = 31298950773168. Its totient is φ = 30917256251220.

The previous prime is 31108103512127. The next prime is 31108103512229. The reversal of 31108103512193 is 39121530180113.

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.

It is a cyclic number.

It is not a de Polignac number, because 31108103512193 - 2¹⁴ = 31108103495809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31108103502193) 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, 95423630243 + ... + 95423630568.

It is an arithmetic number, because the mean of its divisors is an integer number (7824737693292).

Almost surely, 2^{31108103512193} is an apocalyptic number.

It is an amenable number.

31108103512193 is a deficient number, since it is larger than the sum of its proper divisors (190847260975).

31108103512193 is a wasteful number, since it uses less digits than its factorization.

31108103512193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190847260974.

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 31108103512193 in words is "thirty-one trillion, one hundred eight billion, one hundred three million, five hundred twelve thousand, one hundred ninety-three".