11011121021143 has 2 divisors, whose sum is σ = 11011121021144. Its totient is φ = 11011121021142.

The previous prime is 11011121021111. The next prime is 11011121021167. The reversal of 11011121021143 is 34112012111011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11011121021143 - 2⁵ = 11011121021111 is a prime.

It is a super-2 number, since 2×11011121021143² (a number of 27 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 11011121021143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011121021183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505560510571 + 5505560510572.

It is an arithmetic number, because the mean of its divisors is an integer number (5505560510572).

Almost surely, 2^{11011121021143} is an apocalyptic number.

11011121021143 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011121021143 is an equidigital number, since it uses as much as digits as its factorization.

11011121021143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 11011121021143 its reverse (34112012111011), we get a palindrome (45123133132154).

The spelling of 11011121021143 in words is "eleven trillion, eleven billion, one hundred twenty-one million, twenty-one thousand, one hundred forty-three".