4042111203021 has 4 divisors (see below), whose sum is σ = 5389481604032. Its totient is φ = 2694740802012.

The previous prime is 4042111203019. The next prime is 4042111203061. The reversal of 4042111203021 is 1203021112404.

4042111203021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4042111203021 - 2¹ = 4042111203019 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 (4042111203061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673685200501 + ... + 673685200506.

It is an arithmetic number, because the mean of its divisors is an integer number (1347370401008).

Almost surely, 2^{4042111203021} is an apocalyptic number.

It is an amenable number.

4042111203021 is a deficient number, since it is larger than the sum of its proper divisors (1347370401011).

4042111203021 is a wasteful number, since it uses less digits than its factorization.

4042111203021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347370401010.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 4042111203021 its reverse (1203021112404), we get a palindrome (5245132315425).

The spelling of 4042111203021 in words is "four trillion, forty-two billion, one hundred eleven million, two hundred three thousand, twenty-one".