4043342031121 has 2 divisors, whose sum is σ = 4043342031122. Its totient is φ = 4043342031120.

The previous prime is 4043342031109. The next prime is 4043342031163. The reversal of 4043342031121 is 1211302433404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2084237928721 + 1959104102400 = 1443689^2 + 1399680^2 .

It is a cyclic number.

It is not a de Polignac number, because 4043342031121 - 2⁵ = 4043342031089 is a prime.

It is a super-2 number, since 2×4043342031121² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4043342031121.

It is not a weakly prime, because it can be changed into another prime (4043342035121) 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 as a sum of consecutive naturals, namely, 2021671015560 + 2021671015561.

It is an arithmetic number, because the mean of its divisors is an integer number (2021671015561).

Almost surely, 2^{4043342031121} is an apocalyptic number.

It is an amenable number.

4043342031121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4043342031121 is an equidigital number, since it uses as much as digits as its factorization.

4043342031121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 4043342031121 its reverse (1211302433404), we get a palindrome (5254644464525).

The spelling of 4043342031121 in words is "four trillion, forty-three billion, three hundred forty-two million, thirty-one thousand, one hundred twenty-one".