231317090198 has 16 divisors (see below), whose sum is σ = 347198841024. Its totient is φ = 115584173640.

The previous prime is 231317090183. The next prime is 231317090201. The reversal of 231317090198 is 891090713132.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34568033 + ... + 34574723.

It is an arithmetic number, because the mean of its divisors is an integer number (21699927564).

Almost surely, 2^231317090198 is an apocalyptic number.

231317090198 is a deficient number, since it is larger than the sum of its proper divisors (115881750826).

231317090198 is a wasteful number, since it uses less digits than its factorization.

231317090198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15227.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 231317090198 in words is "two hundred thirty-one billion, three hundred seventeen million, ninety thousand, one hundred ninety-eight".