421523405101417 has 2 divisors, whose sum is σ = 421523405101418. Its totient is φ = 421523405101416.

The previous prime is 421523405101343. The next prime is 421523405101457. The reversal of 421523405101417 is 714101504325124.

It is an a-pointer prime, because the next prime (421523405101457) can be obtained adding 421523405101417 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 357414943187241 + 64108461914176 = 18905421^2 + 8006776^2 .

It is a cyclic number.

It is not a de Polignac number, because 421523405101417 - 2³⁵ = 421489045363049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421523405101417.

It is not a weakly prime, because it can be changed into another prime (421523405101457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210761702550708 + 210761702550709.

It is an arithmetic number, because the mean of its divisors is an integer number (210761702550709).

Almost surely, 2^{421523405101417} is an apocalyptic number.

It is an amenable number.

421523405101417 is a deficient number, since it is larger than the sum of its proper divisors (1).

421523405101417 is an equidigital number, since it uses as much as digits as its factorization.

421523405101417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 421523405101417 in words is "four hundred twenty-one trillion, five hundred twenty-three billion, four hundred five million, one hundred one thousand, four hundred seventeen".