4042121201213 has 4 divisors (see below), whose sum is σ = 4181504690940. Its totient is φ = 3902737711488.

The previous prime is 4042121201197. The next prime is 4042121201233. The reversal of 4042121201213 is 3121021212404.

4042121201213 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3457732812004 + 584388389209 = 1859498^2 + 764453^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042121201213 - 2⁴ = 4042121201197 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 (4042121201233) 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, 69691744820 + ... + 69691744877.

It is an arithmetic number, because the mean of its divisors is an integer number (1045376172735).

Almost surely, 2^{4042121201213} is an apocalyptic number.

It is an amenable number.

4042121201213 is a deficient number, since it is larger than the sum of its proper divisors (139383489727).

4042121201213 is a wasteful number, since it uses less digits than its factorization.

4042121201213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139383489726.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 4042121201213 its reverse (3121021212404), we get a palindrome (7163142413617).

The spelling of 4042121201213 in words is "four trillion, forty-two billion, one hundred twenty-one million, two hundred one thousand, two hundred thirteen".