231310130189 has 2 divisors, whose sum is σ = 231310130190. Its totient is φ = 231310130188.

The previous prime is 231310130159. The next prime is 231310130221. The reversal of 231310130189 is 981031013132.

It is an a-pointer prime, because the next prime (231310130221) can be obtained adding 231310130189 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230740926025 + 569204164 = 480355^2 + 23858^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231310130189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231310130159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115655065094 + 115655065095.

It is an arithmetic number, because the mean of its divisors is an integer number (115655065095).

Almost surely, 2^231310130189 is an apocalyptic number.

It is an amenable number.

231310130189 is a deficient number, since it is larger than the sum of its proper divisors (1).

231310130189 is an equidigital number, since it uses as much as digits as its factorization.

231310130189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 231310130189 in words is "two hundred thirty-one billion, three hundred ten million, one hundred thirty thousand, one hundred eighty-nine".