10143204121 has 2 divisors, whose sum is σ = 10143204122. Its totient is φ = 10143204120.

The previous prime is 10143204119. The next prime is 10143204151. The reversal of 10143204121 is 12140234101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10076144400 + 67059721 = 100380^2 + 8189^2 .

It is an emirp because it is prime and its reverse (12140234101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10143204121 - 2¹ = 10143204119 is a prime.

Together with 10143204119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10143204101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5071602060 + 5071602061.

It is an arithmetic number, because the mean of its divisors is an integer number (5071602061).

Almost surely, 2^10143204121 is an apocalyptic number.

It is an amenable number.

10143204121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10143204121 is an equidigital number, since it uses as much as digits as its factorization.

10143204121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10143204121 its reverse (12140234101), we get a palindrome (22283438222).

The spelling of 10143204121 in words is "ten billion, one hundred forty-three million, two hundred four thousand, one hundred twenty-one".