231139683289 has 4 divisors (see below), whose sum is σ = 231226222720. Its totient is φ = 231053143860.

The previous prime is 231139683259. The next prime is 231139683293. The reversal of 231139683289 is 982386931132.

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 231139683289 - 2⁷ = 231139683161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231139683259) 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, 43265709 + ... + 43271050.

It is an arithmetic number, because the mean of its divisors is an integer number (57806555680).

Almost surely, 2^231139683289 is an apocalyptic number.

It is an amenable number.

231139683289 is a deficient number, since it is larger than the sum of its proper divisors (86539431).

231139683289 is an equidigital number, since it uses as much as digits as its factorization.

231139683289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86539430.

The product of its digits is 3359232, while the sum is 55.

The spelling of 231139683289 in words is "two hundred thirty-one billion, one hundred thirty-nine million, six hundred eighty-three thousand, two hundred eighty-nine".