20420023300044 has 24 divisors (see below), whose sum is σ = 48660481056768. Its totient is φ = 6661851572880.

The previous prime is 20420023299989. The next prime is 20420023300049. The reversal of 20420023300044 is 44000332002402.

It is a junction number, because it is equal to n+sod(n) for n = 20420023299987 and 20420023300023.

It is not an unprimeable number, because it can be changed into a prime (20420023300049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18102856972 + ... + 18102858099.

It is an arithmetic number, because the mean of its divisors is an integer number (2027520044032).

Almost surely, 2^{20420023300044} is an apocalyptic number.

It is an amenable number.

20420023300044 is an abundant number, since it is smaller than the sum of its proper divisors (28240457756724).

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

20420023300044 is a wasteful number, since it uses less digits than its factorization.

20420023300044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36205715125 (or 36205715123 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20420023300044 its reverse (44000332002402), we get a palindrome (64420355302446).

The spelling of 20420023300044 in words is "twenty trillion, four hundred twenty billion, twenty-three million, three hundred thousand, forty-four".