123425171 has 2 divisors, whose sum is σ = 123425172. Its totient is φ = 123425170.

The previous prime is 123425123. The next prime is 123425177. The reversal of 123425171 is 171524321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123425171 - 2²⁶ = 56316307 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123425171.

It is not a weakly prime, because it can be changed into another prime (123425177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61712585 + 61712586.

It is an arithmetic number, because the mean of its divisors is an integer number (61712586).

Almost surely, 2^123425171 is an apocalyptic number.

123425171 is a deficient number, since it is larger than the sum of its proper divisors (1).

123425171 is an equidigital number, since it uses as much as digits as its factorization.

123425171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 26.

The square root of 123425171 is about 11109.6881594399. The cubic root of 123425171 is about 497.8913476720.

Adding to 123425171 its reverse (171524321), we get a palindrome (294949492).

The spelling of 123425171 in words is "one hundred twenty-three million, four hundred twenty-five thousand, one hundred seventy-one".