231027173087 has 12 divisors (see below), whose sum is σ = 252049296360. Its totient is φ = 211560644736.

The previous prime is 231027173033. The next prime is 231027173159. The reversal of 231027173087 is 780371720132.

It is a happy number.

It is not a de Polignac number, because 231027173087 - 2¹² = 231027168991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231027173017) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 10792037 + ... + 10813422.

It is an arithmetic number, because the mean of its divisors is an integer number (21004108030).

Almost surely, 2^231027173087 is an apocalyptic number.

231027173087 is a deficient number, since it is larger than the sum of its proper divisors (21022123273).

231027173087 is a wasteful number, since it uses less digits than its factorization.

231027173087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21605530 (or 21605513 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 41.

The spelling of 231027173087 in words is "two hundred thirty-one billion, twenty-seven million, one hundred seventy-three thousand, eighty-seven".