10144...13577 (1318-digits)

This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).

Fausto Morales found a titanic prime number that can be written using all the digits 1-9 in two distinct ways: ascending order 1*2^(3+4+56*78)+9 and descending order 9+(8^(7*6*(5^4)/(-3+21))). [Rivera]