230312312161 has 2 divisors, whose sum is σ = 230312312162. Its totient is φ = 230312312160.

The previous prime is 230312312159. The next prime is 230312312177. The reversal of 230312312161 is 161213213032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116652303936 + 113660008225 = 341544^2 + 337135^2 .

It is a cyclic number.

It is not a de Polignac number, because 230312312161 - 2¹ = 230312312159 is a prime.

It is a super-2 number, since 2×230312312161² (a number of 24 digits) contains 22 as substring.

Together with 230312312159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (230312322161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115156156080 + 115156156081.

It is an arithmetic number, because the mean of its divisors is an integer number (115156156081).

Almost surely, 2^230312312161 is an apocalyptic number.

It is an amenable number.

230312312161 is a deficient number, since it is larger than the sum of its proper divisors (1).

230312312161 is an equidigital number, since it uses as much as digits as its factorization.

230312312161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 230312312161 its reverse (161213213032), we get a palindrome (391525525193).

The spelling of 230312312161 in words is "two hundred thirty billion, three hundred twelve million, three hundred twelve thousand, one hundred sixty-one".