231697063191 has 8 divisors (see below), whose sum is σ = 337013910144. Its totient is φ = 140422462520.

The previous prime is 231697063189. The next prime is 231697063231. The reversal of 231697063191 is 191360796132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231697063191 - 2¹ = 231697063189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231697063191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231697063151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3510561531 + ... + 3510561596.

It is an arithmetic number, because the mean of its divisors is an integer number (42126738768).

Almost surely, 2^231697063191 is an apocalyptic number.

231697063191 is a deficient number, since it is larger than the sum of its proper divisors (105316846953).

231697063191 is a wasteful number, since it uses less digits than its factorization.

231697063191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7021123141.

The product of its (nonzero) digits is 367416, while the sum is 48.

The spelling of 231697063191 in words is "two hundred thirty-one billion, six hundred ninety-seven million, sixty-three thousand, one hundred ninety-one".