420430221422345 has 8 divisors (see below), whose sum is σ = 507902280913800. Its totient is φ = 334086833666560.

The previous prime is 420430221422297. The next prime is 420430221422399. The reversal of 420430221422345 is 543224122034024.

It can be written as a sum of positive squares in 4 ways, for example, as 20360138352841 + 400070083069504 = 4512221^2 + 20001752^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420430221422345 - 2²⁰ = 420430220373769 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 420430221422299 and 420430221422308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282167933096 + ... + 282167934585.

It is an arithmetic number, because the mean of its divisors is an integer number (63487785114225).

Almost surely, 2^{420430221422345} is an apocalyptic number.

It is an amenable number.

420430221422345 is a deficient number, since it is larger than the sum of its proper divisors (87472059491455).

420430221422345 is a wasteful number, since it uses less digits than its factorization.

420430221422345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564335867835.

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 420430221422345 its reverse (543224122034024), we get a palindrome (963654343456369).

The spelling of 420430221422345 in words is "four hundred twenty trillion, four hundred thirty billion, two hundred twenty-one million, four hundred twenty-two thousand, three hundred forty-five".