231301311317 has 2 divisors, whose sum is σ = 231301311318. Its totient is φ = 231301311316.

The previous prime is 231301311301. The next prime is 231301311349. The reversal of 231301311317 is 713113103132.

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., 230547863716 + 753447601 = 480154^2 + 27449^2 .

It is a cyclic number.

It is not a de Polignac number, because 231301311317 - 2⁴ = 231301311301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231301371317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115650655658 + 115650655659.

It is an arithmetic number, because the mean of its divisors is an integer number (115650655659).

Almost surely, 2^231301311317 is an apocalyptic number.

It is an amenable number.

231301311317 is a deficient number, since it is larger than the sum of its proper divisors (1).

231301311317 is an equidigital number, since it uses as much as digits as its factorization.

231301311317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 26.

Adding to 231301311317 its reverse (713113103132), we get a palindrome (944414414449).

The spelling of 231301311317 in words is "two hundred thirty-one billion, three hundred one million, three hundred eleven thousand, three hundred seventeen".