20143014424121 has 4 divisors (see below), whose sum is σ = 20327812721700. Its totient is φ = 19958216126544.

The previous prime is 20143014424111. The next prime is 20143014424163. The reversal of 20143014424121 is 12142441034102.

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 18312716600896 + 1830297823225 = 4279336^2 + 1352885^2 .

It is a cyclic number.

It is not a de Polignac number, because 20143014424121 - 2¹⁰ = 20143014423097 is a prime.

It is a super-2 number, since 2×20143014424121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20143014424111) 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, 92399148626 + ... + 92399148843.

It is an arithmetic number, because the mean of its divisors is an integer number (5081953180425).

Almost surely, 2^{20143014424121} is an apocalyptic number.

It is an amenable number.

20143014424121 is a deficient number, since it is larger than the sum of its proper divisors (184798297579).

20143014424121 is a wasteful number, since it uses less digits than its factorization.

20143014424121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184798297578.

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

Adding to 20143014424121 its reverse (12142441034102), we get a palindrome (32285455458223).

The spelling of 20143014424121 in words is "twenty trillion, one hundred forty-three billion, fourteen million, four hundred twenty-four thousand, one hundred twenty-one".