4043142121241 has 4 divisors (see below), whose sum is σ = 4109423139684. Its totient is φ = 3976861102800.

The previous prime is 4043142121181. The next prime is 4043142121243. The reversal of 4043142121241 is 1421212413404.

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 261688518025 + 3781453603216 = 511555^2 + 1944596^2 .

It is a cyclic number.

It is not a de Polignac number, because 4043142121241 - 2²⁶ = 4043075012377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4043142121243) 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, 33140509130 + ... + 33140509251.

It is an arithmetic number, because the mean of its divisors is an integer number (1027355784921).

Almost surely, 2^{4043142121241} is an apocalyptic number.

It is an amenable number.

4043142121241 is a deficient number, since it is larger than the sum of its proper divisors (66281018443).

4043142121241 is an equidigital number, since it uses as much as digits as its factorization.

4043142121241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66281018442.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 4043142121241 its reverse (1421212413404), we get a palindrome (5464354534645).

The spelling of 4043142121241 in words is "four trillion, forty-three billion, one hundred forty-two million, one hundred twenty-one thousand, two hundred forty-one".