318125123 has 2 divisors, whose sum is σ = 318125124. Its totient is φ = 318125122.

The previous prime is 318125083. The next prime is 318125141. The reversal of 318125123 is 321521813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 318125123 - 2¹⁰ = 318124099 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 318125092 and 318125101.

It is not a weakly prime, because it can be changed into another prime (318125153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159062561 + 159062562.

It is an arithmetic number, because the mean of its divisors is an integer number (159062562).

Almost surely, 2^318125123 is an apocalyptic number.

318125123 is a deficient number, since it is larger than the sum of its proper divisors (1).

318125123 is an equidigital number, since it uses as much as digits as its factorization.

318125123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 318125123 is about 17836.0624298078. The cubic root of 318125123 is about 682.6519301995.

Adding to 318125123 its reverse (321521813), we get a palindrome (639646936).

The spelling of 318125123 in words is "three hundred eighteen million, one hundred twenty-five thousand, one hundred twenty-three".