423322110020 has 24 divisors (see below), whose sum is σ = 897778182168. Its totient is φ = 167652320000.

The previous prime is 423322109989. The next prime is 423322110061. The reversal of 423322110020 is 20011223324.

It can be written as a sum of positive squares in 4 ways, for example, as 90568494916 + 332753615104 = 300946^2 + 576848^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 423322109974 and 423322110001.

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, 104780681 + ... + 104784720.

It is an arithmetic number, because the mean of its divisors is an integer number (37407424257).

Almost surely, 2^423322110020 is an apocalyptic number.

It is an amenable number.

423322110020 is an abundant number, since it is smaller than the sum of its proper divisors (474456072148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423322110020 is a wasteful number, since it uses less digits than its factorization.

423322110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209565511 (or 209565509 counting only the distinct ones).

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

Adding to 423322110020 its reverse (20011223324), we get a palindrome (443333333344).

The spelling of 423322110020 in words is "four hundred twenty-three billion, three hundred twenty-two million, one hundred ten thousand, twenty".