2123042020044 has 72 divisors (see below), whose sum is σ = 5539129842624. Its totient is φ = 627654633600.

The previous prime is 2123042020039. The next prime is 2123042020081. The reversal of 2123042020044 is 4400202403212.

It is a junction number, because it is equal to n+sod(n) for n = 2123042019996 and 2123042020023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4562062 + ... + 5005845.

Almost surely, 2^{2123042020044} is an apocalyptic number.

It is an amenable number.

2123042020044 is an abundant number, since it is smaller than the sum of its proper divisors (3416087822580).

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

2123042020044 is a wasteful number, since it uses less digits than its factorization.

2123042020044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9568007 (or 9567964 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 2123042020044 its reverse (4400202403212), we get a palindrome (6523244423256).

The spelling of 2123042020044 in words is "two trillion, one hundred twenty-three billion, forty-two million, twenty thousand, forty-four".