2042344412021 has 16 divisors (see below), whose sum is σ = 2158093108800. Its totient is φ = 1927423179648.

The previous prime is 2042344411999. The next prime is 2042344412083. The reversal of 2042344412021 is 1202144432402.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2042344412021 - 2¹⁸ = 2042344149877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042344412621) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 52690370 + ... + 52729116.

It is an arithmetic number, because the mean of its divisors is an integer number (134880819300).

Almost surely, 2^{2042344412021} is an apocalyptic number.

It is an amenable number.

2042344412021 is a deficient number, since it is larger than the sum of its proper divisors (115748696779).

2042344412021 is a wasteful number, since it uses less digits than its factorization.

2042344412021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49348.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 2042344412021 its reverse (1202144432402), we get a palindrome (3244488844423).

The spelling of 2042344412021 in words is "two trillion, forty-two billion, three hundred forty-four million, four hundred twelve thousand, twenty-one".