123412417 has 2 divisors, whose sum is σ = 123412418. Its totient is φ = 123412416.

The previous prime is 123412403. The next prime is 123412439. The reversal of 123412417 is 714214321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66846976 + 56565441 = 8176^2 + 7521^2 .

It is an emirp because it is prime and its reverse (714214321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123412417 - 2¹⁵ = 123379649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123412391 and 123412400.

It is not a weakly prime, because it can be changed into another prime (123412447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61706208 + 61706209.

It is an arithmetic number, because the mean of its divisors is an integer number (61706209).

Almost surely, 2^123412417 is an apocalyptic number.

It is an amenable number.

123412417 is a deficient number, since it is larger than the sum of its proper divisors (1).

123412417 is an equidigital number, since it uses as much as digits as its factorization.

123412417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 25.

The square root of 123412417 is about 11109.1141411005. The cubic root of 123412417 is about 497.8741974021.

Adding to 123412417 its reverse (714214321), we get a palindrome (837626738).

The spelling of 123412417 in words is "one hundred twenty-three million, four hundred twelve thousand, four hundred seventeen".