4013044121 has 2 divisors, whose sum is σ = 4013044122. Its totient is φ = 4013044120.

The previous prime is 4013044081. The next prime is 4013044159. The reversal of 4013044121 is 1214403104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3923268496 + 89775625 = 62636^2 + 9475^2 .

It is a cyclic number.

It is not a de Polignac number, because 4013044121 - 2¹⁴ = 4013027737 is a prime.

It is a super-2 number, since 2×4013044121² = 32209046234185325282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4013044093 and 4013044102.

It is not a weakly prime, because it can be changed into another prime (4013044181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006522060 + 2006522061.

It is an arithmetic number, because the mean of its divisors is an integer number (2006522061).

Almost surely, 2^4013044121 is an apocalyptic number.

It is an amenable number.

4013044121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4013044121 is an equidigital number, since it uses as much as digits as its factorization.

4013044121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4013044121 is about 63348.5920995881. The cubic root of 4013044121 is about 1589.1247006500.

Adding to 4013044121 its reverse (1214403104), we get a palindrome (5227447225).

The spelling of 4013044121 in words is "four billion, thirteen million, forty-four thousand, one hundred twenty-one".