123221300317 has 2 divisors, whose sum is σ = 123221300318. Its totient is φ = 123221300316.

The previous prime is 123221300299. The next prime is 123221300333. The reversal of 123221300317 is 713003122321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109044587961 + 14176712356 = 330219^2 + 119066^2 .

It is a cyclic number.

It is not a de Polignac number, because 123221300317 - 2¹¹ = 123221298269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123221300291 and 123221300300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123221300717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61610650158 + 61610650159.

It is an arithmetic number, because the mean of its divisors is an integer number (61610650159).

Almost surely, 2^123221300317 is an apocalyptic number.

It is an amenable number.

123221300317 is a deficient number, since it is larger than the sum of its proper divisors (1).

123221300317 is an equidigital number, since it uses as much as digits as its factorization.

123221300317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 123221300317 its reverse (713003122321), we get a palindrome (836224422638).

The spelling of 123221300317 in words is "one hundred twenty-three billion, two hundred twenty-one million, three hundred thousand, three hundred seventeen".