173000317123 has 2 divisors, whose sum is σ = 173000317124. Its totient is φ = 173000317122.

The previous prime is 173000317111. The next prime is 173000317151. The reversal of 173000317123 is 321713000371.

173000317123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (173000317151) can be obtained adding 173000317123 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-173000317123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 173000317091 and 173000317100.

It is not a weakly prime, because it can be changed into another prime (173000311123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86500158561 + 86500158562.

It is an arithmetic number, because the mean of its divisors is an integer number (86500158562).

Almost surely, 2^173000317123 is an apocalyptic number.

173000317123 is a deficient number, since it is larger than the sum of its proper divisors (1).

173000317123 is an equidigital number, since it uses as much as digits as its factorization.

173000317123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 28.

Adding to 173000317123 its reverse (321713000371), we get a palindrome (494713317494).

The spelling of 173000317123 in words is "one hundred seventy-three billion, three hundred seventeen thousand, one hundred twenty-three".