  We compute predictions for various low-transverse-momentum bulk observables
in $\sqrt{s_{NN}} = 5.023$ TeV Pb+Pb collisions at the LHC from the
event-by-event next-to-leading-order perturbative-QCD + saturation + viscous
hydrodynamics ("EKRT") model. In particular, we consider the centrality
dependence of charged hadron multiplicity, flow coefficients of the
azimuth-angle asymmetries and correlations of event-plane angles. The
centrality dependencies of the studied observables are predicted to be very
similar to those at 2.76 TeV, and the magnitudes of the flow coefficients and
event-plane angle correlations are predicted to be close to those at 2.76 TeV.
The flow coefficients may, however, offer slightly more discriminating power on
the temperature dependence of QCD matter viscosity than the 2.76 TeV
measurements. Our prediction for the multiplicity in the 0-5\% centrality
class, obtained using the two temperature-dependent shear-viscosity-to-entropy
ratios that give the best overall fit to RHIC and LHC data is $dN_{\rm
ch}/d\eta\big|_{|\eta|\le 0.5} =1876\dots2046$. We also predict a power-law
increase from 200 GeV Au+Au collisions at RHIC to 2.76 and 5.023 TeV Pb+Pb
collisions at the LHC, $dN_{\rm ch}/d\eta\big|_{|\eta|\le 0.5} \propto
s^{0.164\dots0.174}$.
