11818...11881 (161-digits)

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

                                                     1 1818180111 0808100888
8088018810 0081818118 0111008801 0110800018 1000008001 8111000088 8000081001
8801811801 1011080118 1008880100 0888018000 8011881180 0001800881 0108811881

The first/smallest 161-digit prime found in first 3070 cube digits (in order of their occurrence) in the decimal expansion of Golden Ratio. [Bajpai]