11509912028143 has 2 divisors, whose sum is σ = 11509912028144. Its totient is φ = 11509912028142.

The previous prime is 11509912028141. The next prime is 11509912028171. The reversal of 11509912028143 is 34182021990511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11509912028143 - 2¹ = 11509912028141 is a prime.

Together with 11509912028141, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11509912028093 and 11509912028102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11509912028141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5754956014071 + 5754956014072.

It is an arithmetic number, because the mean of its divisors is an integer number (5754956014072).

Almost surely, 2^{11509912028143} is an apocalyptic number.

11509912028143 is a deficient number, since it is larger than the sum of its proper divisors (1).

11509912028143 is an equidigital number, since it uses as much as digits as its factorization.

11509912028143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 46.

The spelling of 11509912028143 in words is "eleven trillion, five hundred nine billion, nine hundred twelve million, twenty-eight thousand, one hundred forty-three".