11050143121 has 2 divisors, whose sum is σ = 11050143122. Its totient is φ = 11050143120.

The previous prime is 11050143119. The next prime is 11050143173. The reversal of 11050143121 is 12134105011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9094292496 + 1955850625 = 95364^2 + 44225^2 .

It is a cyclic number.

It is not a de Polignac number, because 11050143121 - 2¹ = 11050143119 is a prime.

Together with 11050143119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11050140121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5525071560 + 5525071561.

It is an arithmetic number, because the mean of its divisors is an integer number (5525071561).

Almost surely, 2^11050143121 is an apocalyptic number.

It is an amenable number.

11050143121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11050143121 is an equidigital number, since it uses as much as digits as its factorization.

11050143121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 11050143121 its reverse (12134105011), we get a palindrome (23184248132).

The spelling of 11050143121 in words is "eleven billion, fifty million, one hundred forty-three thousand, one hundred twenty-one".