4042014121 has 4 divisors (see below), whose sum is σ = 4087430100. Its totient is φ = 3996598144.

The previous prime is 4042014107. The next prime is 4042014169. The reversal of 4042014121 is 1214102404.

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 1637092521 + 2404921600 = 40461^2 + 49040^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042014121 - 2⁹ = 4042013609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4042014521) 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, 22707856 + ... + 22708033.

It is an arithmetic number, because the mean of its divisors is an integer number (1021857525).

Almost surely, 2^4042014121 is an apocalyptic number.

It is an amenable number.

4042014121 is a deficient number, since it is larger than the sum of its proper divisors (45415979).

4042014121 is an equidigital number, since it uses as much as digits as its factorization.

4042014121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45415978.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 4042014121 is about 63576.8363557043. The cubic root of 4042014121 is about 1592.9394776418.

Adding to 4042014121 its reverse (1214102404), we get a palindrome (5256116525).

The spelling of 4042014121 in words is "four billion, forty-two million, fourteen thousand, one hundred twenty-one".