423410020443 has 10 divisors (see below), whose sum is σ = 632501388684. Its totient is φ = 282273346908.

The previous prime is 423410020409. The next prime is 423410020459. The reversal of 423410020443 is 344020014324.

It is a happy number.

423410020443 is a `hidden beast` number, since 4 + 2 + 3 + 410 + 0 + 204 + 43 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-423410020443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (423410020493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2613642021 + ... + 2613642182.

Almost surely, 2^423410020443 is an apocalyptic number.

423410020443 is a deficient number, since it is larger than the sum of its proper divisors (209091368241).

423410020443 is an equidigital number, since it uses as much as digits as its factorization.

423410020443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5227284215 (or 5227284206 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 423410020443 its reverse (344020014324), we get a palindrome (767430034767).

The spelling of 423410020443 in words is "four hundred twenty-three billion, four hundred ten million, twenty thousand, four hundred forty-three".