420123413 has 2 divisors, whose sum is σ = 420123414. Its totient is φ = 420123412.

The previous prime is 420123391. The next prime is 420123437. The reversal of 420123413 is 314321024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401521444 + 18601969 = 20038^2 + 4313^2 .

It is a cyclic number.

It is not a de Polignac number, because 420123413 - 2¹⁶ = 420057877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420123113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210061706 + 210061707.

It is an arithmetic number, because the mean of its divisors is an integer number (210061707).

Almost surely, 2^420123413 is an apocalyptic number.

It is an amenable number.

420123413 is a deficient number, since it is larger than the sum of its proper divisors (1).

420123413 is an equidigital number, since it uses as much as digits as its factorization.

420123413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 420123413 is about 20496.9122796581. The cubic root of 420123413 is about 748.9605826661.

Adding to 420123413 its reverse (314321024), we get a palindrome (734444437).

The spelling of 420123413 in words is "four hundred twenty million, one hundred twenty-three thousand, four hundred thirteen".