5123120173 has 2 divisors, whose sum is σ = 5123120174. Its totient is φ = 5123120172.

The previous prime is 5123120161. The next prime is 5123120201. The reversal of 5123120173 is 3710213215.

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., 4898180169 + 224940004 = 69987^2 + 14998^2 .

It is a cyclic number.

It is not a de Polignac number, because 5123120173 - 2⁵ = 5123120141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5123120573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2561560086 + 2561560087.

It is an arithmetic number, because the mean of its divisors is an integer number (2561560087).

Almost surely, 2^5123120173 is an apocalyptic number.

It is an amenable number.

5123120173 is a deficient number, since it is larger than the sum of its proper divisors (1).

5123120173 is an equidigital number, since it uses as much as digits as its factorization.

5123120173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 5123120173 is about 71575.9748309445. The cubic root of 5123120173 is about 1723.8977959780.

Adding to 5123120173 its reverse (3710213215), we get a palindrome (8833333388).

The spelling of 5123120173 in words is "five billion, one hundred twenty-three million, one hundred twenty thousand, one hundred seventy-three".